Skip to main content

Write a Review

$29.99 - $79.99 $79.95 - $79.99 Up to 63% Off
A mountain bike short built to withstand a variety of trail conditions. Tario Women's is the must-have trail short for anyone who calls themselves a mountain biker. With a lightweight and breathable stretch-woven shell and plenty of storage for essentials, this short works just as hard as you do. Key features - Nylon shell is lightweight and durable - Easy-adjust waist with integrated belt and zippered, double-snap front, ensures secure fit - Two traditional hand pockets - Drop-in pocket keeps your phone secure and won’t bounce around while riding - One zippered thigh pocket securely holds your essentials - 12" (30cm) inseam - Non-restrictive loose fit allows for freedom of movement and casual style
$29.99 $94.99 68% Off
A stylish, fitted women's jersey with thermal material for comfort and warmth on cool rides. You'll be craving chilly rides The flattering fit of the Vella Women’s Thermal Jersey lets you preserve your style without compromising comfort or warmth. Ride to and from your favorite activities with this non-traditional bike jersey featuring a large back pocket for essentials and a half zip front to control your climate on long climbs or when temps rise. Product details - Thermal fabric is soft, stretchy, and lightweight for great comfort - Front half zip (12.25" / 31 cm) provides great ventilation on long climbs or warm days - One large full-zip rear pocket for all your storage needs - Drop-in security pocket holds your phone so it won't bounce around while riding - Locker loop lets garment hang and dry quickly so you are ready for your next ride - Fitted cut provides streamlined body fit for enhanced performance
$31.49 $63.95 51% Off
Upgrade or refresh your bike. - Original equipment replacement Bontrager AT-550 26 wheels - Bontrager AT-550 single wall, non-eyeletted rims - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed
$31.99 $39.95 20% Off
This versatile hybrid and city tire is great for a variety of riding conditions and offers lightweight puncture protection, lasting durability, and reflectivity. Light, versatile, and durable Fast rolling and durable H2 Hard-Case Lite tires are perfect for riders with one bike, but multiple needs. They deliver the durability and confidence of a hybrid tire, plus the lighter-weight design rolls fast and provides great road feel. Hard-Case Lite gives riders lightweight flat protection and reflective sidewalls add visibility to this smooth rolling, versatile, and durable tire. Product details - Excellent tire for streets, paths, and light trails - The updated tread design delivers confident traction that rolls smooth - Hard-Case Lite puncture protection provides lightweight durability - Sub-tread breaker belt helps prevent punctures - Tough 30 TPI construction for durability and longer tread life - Reflective sidewall strips for added visibility Specifications - TPI: 30 TPI - Durometer: 60a - Bead: Wire - Type: Clincher - Minimum pressure: 60psi - Max pressure: 95psi - ETRTO: 32-622 - Puncture protection: Hard-Case Lite - Studdable: No
$41.99
Bontrager's Ion 120 and Flare 1 light set is at the ready to keep you shining on every ride! These front and rear lights are simple, powerful, and easy to use. Plus, they feature long-lasting steady and flash modes and easily attach to virtually any handlebar and seatpost with the included mounts. - Ion 120 offers high, low, and flash modes for versatile lighting options - Sync bracket allows for quick and easy adjustment, mounting, and removal - Flare 1 features three modes—steady, flashing, and random flashing - Included seatpost clamp and belt clip mount for versatile mounting options - Set includes: Ion 120 front light, Flare 1 rear light, and mounts - 50+ hour battery life, front and rear - Includes all required batteries (5 AAA) - Rechargeable: No - Weight: 135g
$34.99 - $84.99 $79.99 - $84.99 Up to 59% Off
A performance cycling short with impressive features and modern styling for committed road riders. Graduate to the faster group ride With sensible features, top-level comfort, and bold style, the Circuit Short offers practical performance for every type of ride. Multi-material construction and a molded dual-density chamois make the perfect pair for stylish all-purpose performance. Product details - Stratus inForm BioDynamic Chamois with an OverEasy constructed dual-density foam pad - Profila Power compressive technology fights muscle fatigue - Clean cut compression leg gripper - Reflective elements enhance visibility for maximum safety - 9.5” (24cm) inseam - Fitted cut provides streamlined body fit for enhanced performance
$34.99 - $39.99 $49.95 - $49.99 Up to 30% Off
The Solstice Women's Short is perfect for enthusiasts and casual cyclists alike with optimized padding in all the right places that provides comfort for miles. Soft and stretchy main material paired with a compressive fit ensures your legs stay fresh while silicone print on the leg bands ensure things stay put with every pedal stroke. - Ultra soft and stretchy compressive main material adds additional comfort - Cirra inForm dimension-optimized cycling pad offers ultimate fit and all-day comfort - Wide waistband offers exceptional comfort with even-pressure distribution - Fitted cut provides streamlined body fit for enhanced performance - Inseam length: 8" (20cm) - Temperature use (high): 95°F (35°C) - Temperature use (low): 60°F (16°C) - Water resistant: No - Chamois and liner: Chamois (Sewn-in) - Fiber content: 80% Nylon / 20% Elastane - Material: Knit - Material technology: Antimicrobial
$34.99 $49.95 30% Off
Welcome to the future The Transmitr Remote wirelessly controls up to seven Transmitr ready devices. It easily attaches to any bike's handlebars for convenient on the bar control of all Transmitr lights. The ANT+ enabled Transmitr remote is compatible with all Transmitr products and allows for wireless on/off, mode selection, real time light battery status, and more. - Transmitr remote can simultaneously control up to 7 lights - ANT+ enabled for use with all Transmitr products - Use Transmitr system for wireless on/off, mode selection, and more - Can be used with multiple Flare RT lights for turn signal configuration - Includes CR2032 battery, mount, and quick-start manual
$69.99
A pro tire that hasn't forgotten its roots The XR4 Team Issue is the no-compromise Tubeless Ready mountain bike tire designed for quickness in the gnarliest cross country terrain. When the pro circuit demands an aggressive tread for loose trails, Trek Factory Racing opts for the lateral cupped blocks, long shoulder blocks, and buttressed tread block edges of the XR4 Team Issue. Key features: - An aggressive trail tire that excels in loose and rocky conditions - Aggressive tread design provides confident cornering and braking traction in demanding terrain - Tubeless Ready (TLR) for easy tubeless setup and puncture protection - Supple and strong Inner Strength casing provides lightweight sidewall protection - Lightweight 120 TPI casing provides great ride feel and tire performance
$35.99 - $51.99 $51.95 - $51.99 Up to 31% Off
Dexterity for days Don't let cool weather put a halt to your riding season. The Circuit Windshell Glove is constructed of durable windproof and water-resistant material with padding to support your palms in just the right places, backed by science. Product details - Windshell fabric on back of hand is lightweight, windproof, and water-resistant - Silicone print on fingers provide durability and grip in wet conditions - inForm inverted pad design puts gel and memory foam padding in just the right places, backed by science - Integrated buckle pairs gloves together to prevent losing one after rides - Longer cuffs with thermal inserts provide better coverage and more warmth - Conductive thread creates touchscreen-compatible fingertips Specifications - Gender: Unisex - Temperature use (high): 70 deg. F - Temperature use (low): 55 deg. F - Pad type: Padded - Backing material: Woven
$69.99
All-purpose, value-packed helmet balances performance and comfort with the added protection of MIPS. All-purpose protection for every rider The Solstice MIPS helmet is proof you don't have to spend a lot of money to get a great fitting, great looking, and easy-to-use bike helmet. Featuring MIPS, Multi-directional Impact Protection System, it includes a sleek built-in brim with plug ports for a clean look when the additional visor is removed. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Product details - MIPS Brain Protection System - Fidlock magnetic buckle fastens effortlessly for a quick, secure fit - Intuitive, one-handed Headmaster fit system adjusts height and circumference - Built-in and removable visor options give you two choices for constant coverage - LockDown dividers make helmet strap management clean and easy to adjust - Internal, recessed channels move airflow over your head to keep you cool and dry - Soft, comfortable, moisture-wicking and washable helmet pads for added comfort - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Small/Medium (51-58cm); Medium/Large (55-61cm) - Fit system: Headmaster II - Pad material: Moisture wicking pads - Buckle type: Fidlock buckle - Includes: Visor plugs - Weight: 335g (Small/Medium)
$36.75 $74.95 51% Off
Bontrager's DuoTrap Digital Speed/Cadence Sensor pulls double duty for your ANT+ cycling computer. It wirelessly transmits speed and cadence data and fits directly into the chainstay of certain Trek bicycles for a clean look that installs in seconds.
$94.99
An unpadded thermal tight to pair with your favorite shorts during chilly late-season rides. Trap your body heat, insulate your legs, and ride stronger longer with the Circuit Thermal Unpadded Cycling Tight. Ultra-soft fleece interior and a unique fold-over waistband design will have you reaching for these tights any time low temps are in the forecast. Product details - Thermal fabric with brushed interior is engineered to trap and retain body heat - Articulated back-of-knee removes excess material - Stretchable rear elastic waistband keeps things put - Soft foldover front waistband prevents band from cutting in - Tapered ankle design with ample stretch keeps tights close-to-skin - Fitted cut provides streamlined body fit for enhanced performance
$89.99
A stylish kids' helmet with WaveCel, a leading helmet technology in the protection against cycling-related head injuries. A major advancement in the protection against cycling-related head injuries Safety has never looked so cool. Jet is a kids' bike helmet with skater-inspired style, proven WaveCel protection, and a parent-approved price. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. Product details - WaveCel advanced helmet technology - Meets ASTM standards, whose tests use a smaller mass headform more realistic to younger riders - Fidlock magnetic buckle fastens easily for a quick, secure, kid-friendly fit - Comes with a free sticker kit - Dialed fit system provides a secure and comfortable fit - Soft and thick helmet pads are removable for easy cleaning - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Universal Youth (50 – 55cm) - Fit system: HB-80 - Pad material: Moisture-wicking pads - Buckle type: Fidlock buckle - Includes: Crash Replacement Guarantee, stickers - Weight: 540g
$39.99 $51.95 23% Off
A compact yet capable tool with an array of hex, torx, spoke, screwdriver, and chain tools. Make road- or trail-side adjustments and fixes with confidence using 1 of 15 integrated tools packaged in the slim and easy-to-carry design of Bontrager Pro Multi-Tool. A vast array of hex, torx, spoke tools and screwdrivers will have you back on your back in no time —and it all packs down small in a magnetic case for easy carrying in a pocket or bag. Product details - Slim magnetic case doubles as handle for all tools, including chain tool - 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, #2 Phillips, #1 Flat, T25 and 0, 1, 2, 3 spoke - Lightweight, durable design stows nearly anywhere - Chain tool compatible with 8, 9, 10, 11, 12-speed drivetrains - Integrated bottle opener for post ride refreshments
$39.99 - $109.99 $49.95 - $109.99 Up to 64% Off
Time to tackle new challenges The Vella women’s cycling shoe was designed to deliver the performance benefits of a cycling shoe with the go-anywhere fashion of a street shoe. All-day comfort and versatility means this clip-in shoe is perfect for the woman who's just active off the bike as she is on it. Key features - inForm Race last offers a slightly roomier, high-performance fit - Glass-reinforced internal nylon plate with full Tachyon rubber outsole - Compatible with 2-bolt SPD-style cleats - Stiffness index - 6 of 14 - Women's Specific Design is engineered to yield a better fit and greater comfort for women Details - Upper Fiber Content: 58.7% PU / 10.9% Polyester / 30.4% Nylon - Sole Fiber Content: 100% Rubber - Liner Fiber Content: 100% Polyester
$43.99 $54.95 - $54.99 20% Off
A versatile hybrid and city tire that performs well in a variety of conditions and offers maximum puncture protection plus lasting durability and reflectivity. Our best puncture protection H2 is our best hybrid tire, and with Hard-Case Ultimate you also get the very best in puncture protection. The versatile design is at home on streets, paths, and light trails and features an updated tread that rolls smooth and provides good cornering traction for a confident, efficient ride. Lasting durability, a long-wearing tread, and reflective sidewalls help make this tire a proven winner. Product details - Excellent tire for streets, paths, and light trails - The updated tread design delivers confident traction that rolls smooth - Hard-Case Ultimate puncture protection for the ultimate in tire durability - Sub-tread breaker belt helps prevent punctures - Anti-cut, bead-to-bead casing resists cuts from glass and sharp objects - Additional sub-tread co-extrusion provides maximum puncture protection - Reflective sidewall strips for added visibility Specifications - TPI: 60 TPI - Durometer: 60a - Bead: Wire - Type: Clincher - Minimum pressure: 60psi - Max pressure: 95psi - ETRTO: 32-622 - Puncture protection: Hard-Case Ultimate - Studdable: No
$43.99 $54.95 - $54.99 20% Off
A versatile hybrid and city tire that performs well in a variety of conditions and offers maximum puncture protection plus lasting durability and reflectivity. Our best puncture protection: H2 is our best hybrid tire, and with Hard-Case Ultimate you also get the very best in puncture protection. The versatile design is at home on streets, paths, and light trails and features an updated tread that rolls smooth and provides good cornering traction for a confident, efficient ride. Lasting durability, a long-wearing tread, and reflective sidewalls help make this tire a proven winner. Product details - Excellent tire for streets, paths, and light trails - The updated tread design delivers confident traction that rolls smooth - Hard-Case Ultimate puncture protection for the ultimate in tire durability - Sub-tread breaker belt helps prevent punctures - Anti-cut, bead-to-bead casing resists cuts from glass and sharp objects - Additional sub-tread co-extrusion provides maximum puncture protection - Reflective sidewall strips for added visibility - Size-specific tread patterns with more traction on wider sizes and a faster-rolling design on narrower sizes Features: A hybrid tire you’ll love H2 is our best hybrid tire and the perfect upgrade for your city bike. Better protection against flats means more riding, less punctures, and a longer lasting tire. Hard-Case Ultimate puncture protection Our best puncture protection delivers a triple layer of protection against flats with a sub-tread aramid breaker belt, a full bead-to-bead anti-cut casing, and a sub-tread co-extrusion. Reflective sidewalls Reflective sidewalls add visibility in low light conditions. They’re perfect for helping riders stand out on city streets and paths after dark. reCYCLE compound Bontrager's proprietary reCYCLE compound gives new life to old rubber! H2 tires in select sizes (700x40 and larger) contain 11% recycled material. Tread for how you ride H2 tires have a size-specific tread design. Larger tire sizes have additional tread for added traction and confidence, while narrower tire sizes have a smoother tread for a faster and more efficient ride.
$54.99
XR models now include 29" sizes. Same name, same technology and now more options than ever. Key features - A cross country race tire that excels in fast hardpack conditions - Super low multi-edged knobs for fast rolling predictable traction - Ultra-lightweight for fast acceleration
$49.99 - $89.99 $84.95 - $94.99 Up to 41% Off
Carry more, go further Adventure awaits with this frame bag designed specifically to work with most Trek bike frames. A simple strap design makes installation a breeze and the durable, waterproof materials help ensure that you are ready for anything. The Adventure Frame Bag comes in three sizes, each featuring compartmentalized pockets to keep all of your riding and adventuring needs organized It's available in three sizes, each featuring a large main pocket with a smaller compartment for keeping all of your riding and adventuring gear organized. Product details - Available in three sizes to fit more frames and adventures - Stay organized with one main pocket and one smaller compartment pocket - High-vis lining makes finding your gear easy - Easy-to-use attachment straps feature a soft rubber coating to reduce abrasion - Water resistant construction helps keep your gear dry - Durable materials and robust zippers designed to last Specifications - Small Dimensions: 40cm (l) x 5cm (w) x 10cm (h) - Medium Dimensions: 45cm (l) x 5cm (w) x 12cm (h) - Large Dimensions: 50cm (l) x 5cm (w) x 12cm (h) - Attachment: Hook and loop strap - Fiber content: 87% Nylon 210 Ripstop with Poly 50 Back / 12% Hypalon / 1% Nylon Mesh - Material: Woven
$84.99
The protector of all things wind The Circuit Women's Windshell Vest is an ultralight packable vest essential for crisp windy rides when your core needs protection. Not only is this vest windproof, but it also features a full length zipper for excellent temperature regulation, and has an extended rear droptail design for coverage against road spray. Product details - Windshell fabric is lightweight and easily packable - Full-length zipper with draft flap allows temperature regulation - Zippered security pocket on left chest into which the vest can be packed - Drop tail and adjustable hem with drawcord provide a precise on-bike fit - Semi-fitted cut follows the curves of your body with room for movement Specifications - Gender: Women - Fit profile: Semi-fitted - Temperature use (high): 70 deg. F - Temperature use (low): 50 deg. F - Fiber content: 100% Polyester - Material: Woven
$49.99 $74.95 33% Off
Connect ANT+ and Bluetooth Smart devices to all of the data available from the DuoTrap S sensor for your on-the-bike wireless needs. • ANT+ 2.4 GHz and Bluetooth Smart wireless digital speed and cadence sensor • ANT+ and Bluetooth Smart allow simultaneous use of Trip 300 and smartphone • For use with many ANT+ and Bluetooth Smart wireless technology enabled devices • Includes Bontrager wheel magnet, crank cadence band, and CR2032 battery • Works with Trek DuoTrap compatible bikes
$49.99 $99.95 50% Off
A compact and powerful front light with lasting brightness that makes it easy to see the street, path, or trail and features a dedicated Daytime Running Light mode that can be seen from 2km away, even during daylight hours. Ion Comp R packs the power of lasting light into a sleek, compact design that's at home on any road, mountain, or city bike. Light your way with five modes, including a Daytime Running Light mode that's designed to increase rider visibility during the day and can be seen from 2km away. Product Details - Ion Comp R provides a powerful beam that illuminates the street, path, or trail - A warm, wide 700-lumen beam allows for confident night riding with a great depth of field - DRL-specific focus, flash, and range flash patterns offer ultimate daytime visibility - Long-lasting brightness exceeds FL1 industry standards and outlasts the competition - Runtimes: 700LM—1.5hrs, 500LM—3hrs, 300LM—6hrs, 300LM day flash—19hrs, 200LM night flash—9hrs - Blendr-compatible for integrated mounting on compatible Blendr stems, helmets, and helmet mounts - Quick Connect+ offers secure installation with a flexible mount that's compatible with all bars 22.2 to 35mm - Includes Ion Comp R light, Adjustable Quick Connect+ Mount, and micro USB charging cable
$49.99 $94.99 47% Off
Superior simplicity Quantum is a no-nonsense mountain bike shoe perfect for anyone looking to clip-in and hit the trails. This two-bolt compatible shoe features the reliable adjustability of three zonal hook-and-loop straps, so you always stay comfortable and secure when pushing the pedals. If you want to look sleek and sophisticated, look to Quantum for a more efficient ride. A functional, confidence-inspiring off-road cycling shoe for riders who are venturing into the clip-in riding experience. - inForm Race last offers a slightly roomier, high-performance fit - Three hook-and-loop closure straps provide a wide range of adjustability - Durable synthetic uppers are perforated for breathability, and hold up to the demands of all off-road riding - Rugged, GnarGuard outer material at toe and heel protects against abrasions and trail debris - Nylon composite Bronze Series sole provides stiff, yet walkable performance - Stiffness index 6 of 14 offers some forgiveness and elevates comfort - Tachyon rubber lugs allow reliable grip and traction in all types of terrain - Compatible with 2-bolt SPD-style cleats, plus placement indicators guide proper cleat installation and alignment
$49.99 $74.95 33% Off
An elegant ANT+ cycling computer that’s simple to set up, intuitive to operate, and has a large, easy-to-read screen. Know your ride Change the way you ride with the RIDEtime Elite Cycling Computer. It's easy to pair with compatible ANT+ sensors for real-time speed, cadence, and power data so you can target more productive workouts and better recovery rides. Simple setup and an intuitive one-button interface get you riding faster, while features such as auto start/stop and auto light control help you take charge of your ride. Product details - 2” easy-to-read screen features a programmable backlight and customizable tri-field display - Features auto start/stop, auto clear, and auto light control with customizable hands-free scan modes - Tri-field display lets you see three functions at once (speed, cadence, heart rate, power) - Displays Trek Certified Service reminders based on your selected bicycle type - Displays distance (trip/total), time (clock, timer), and calories burned - Track your speed, heart rate, power, cadence (current, average, max) - Includes sleek out-front mount and is also Blendr compatible - Requires ANT+ compatible sensor such as DuoTrap S or Interchange Combo Sensor - Battery: CR2032 (Coin) - Weight: 40g
$49.99 $64.99 - $67.99 Up to 26% Off
Be ready to ride at a moment's notice with plenty of space for MTB essentials on rides lasting two hours or less. Always be prepared For off-road riders who give up seat packs for dropper posts, Rapid Pack is perfect for mountain bike rides lasting two hours or less. Designed with a sleek aesthetic that makes you feel like you aren't wearing your uncle's fanny pack, this bag holds all your essentials when cargo pockets are being used and hydration packs are overkill. Product details - Lightweight stretch woven material is durable and works with the body's natural movements - Ridged foam back panel for breathability and comfort - Two zippered security pockets hold essentials - Left-side opening features internal mesh pockets for easy gear organization - Middle waterbottle pocket centralizes weight while riding - Right-side opening features internal mesh pockets with compression phone sleeve and key fob - Fits most tubes including fat bike and plus sized models
$74.99
Extend your cycling season Round out your cycling wardrobe with one of our most popular autumn road products. The S1 Softshell Shoe Cover keeps you warm, dry, and protected in rainy or dry conditions above freezing. Key features - Choose the right gear for your climate—S1 for above freezing, S2 for below - Profila Softshell fabric for water resistance and windproof protection in cold and wet conditions - Visibility colorway uses biomotion to help improve daytime detectability - YKK zipper for easy on/off - Designed for use with road or mountain shoes for maximum versatility - Reflective elements enhance visibility during nighttime riding
$89.99
A stylish, fitted women's jersey with thermal material for comfort and warmth on cool rides. You'll be craving chilly rides The flattering fit of the Vella Women's Thermal Jersey lets you lets you preserve your style without compromising comfort or warmth. Ride to and from your favorite activities with this non-traditional bike jersey featuring a large back pocket for essentials and a half zip front to control your climate on long climbs or when temps rise. - Profila Thermal fabric is soft, stretchy, and lightweight for great comfort - Front half zip (12.25-inch / 31 cm) provides great ventilation on long climbs or warm days - One large full-zip rear pocket for all your storage needs - Drop-in security pocket holds your phone so it won't bounce around while riding - Reflective elements add contrast to enhance nighttime visibility - Locker loop lets garment hang and dry quickly so you are ready for your next ride - Fitted cut provides a streamlined body fit for enhanced performance
$139.99
Fight back at winter The Velocis Women's Softshell Jacket is a great option for discerning cyclists braving winter, even when the conditions are less than ideal. Softshell front panels protect you from wind and water, while thermal rear panels with a brushed back are soft on your skin and allow excellent breathability. Product details - Softshell front panel is wind- and water-resistant for inclement weather protection - Thermal rear panel adds comfortable stretch and breathability - Three open-back pockets with built-in stretch for easy access while wearing gloves - Additional rear zippered security pocket stores valuables - Soft ribbed material at wrists and collar add warmth and allow easy layering - Locker loop makes jacket easy to hang for quick drying after rides - Fitted cut provides streamlined body fit for enhanced performance Specifications: - Gender: Women - Fit profile: Fitted - Temperature use (high): 55 deg. F - Temperature use (low): 35 deg. F - Water resistant: Yes - Fiber content: 73% Polyester / 11% Cocona® 37.5® Polyester / 9% Polyurethane / 7% Elastane - Material: Knit
$64.99 - $69.99
Rock gardens. Big hits. Bontrager's G4 Team Issue downhill tire is intended for very aggressive riding over difficult terrain in dry, rocky conditions. Ramped leading edges on the center blocks, open tread design, and aggressive shoulder blocks keep the G4 rolling fast, and it quickly clears debris, and provides confident cornering. Dual-ply casing and condition-specific compounds provide additional support and control. Key features - Excels in dry and rocky conditions - Ramp edges for fast rolling - Large center knobs improve handling and traction - Sipes for increased traction on slippery roots and rocks - Dual-Ply multi-layer casing adds stability in larger-volume, heavy-duty tires - Wire bead