Parts

Trek proprietary headset spacers compatible with Trek Knock Block model bikes. - 3 pack of 10mm spacers specific to the Knock Block system - Not to be used on a standard headset system

Original equipment replacement rear derailleur hangers. - Attachment hardware is sold separately - For specific compatibility concerns, please contact our Customer Service team

Shimano Tourney TX is a basic 8-speed rear derailleur for entry-level sport bikes and riders. Enjoy durable, trouble free, and stable performance. - Maximum cog size: 34t - Total capacity: 43t

Shimano's Deore XT Ice-Tech rotors utilize the industry standard 6-bolt mounting system for secure mounting. These rotors use an aluminum core with steel outer plates to better control the temperature of the braking surface. This means quieter braking and, more importantly, less fade on long downhills and improved pad life. The various sizes give you total freedom of choice over the delicate balance of power versus weight.

A 35mm mountain bar that maintains a forgiving ride feel and maximizes strength with minimal weight. Large and in charge Line 35 is ready for any terrain and changes what's possible on the trail. It maintains comfort and control on any ride, and an oversize clamping diameter increases strength and decreases overall bar and stem weight while ensuring a compliant, forgiving ride. Proven sweep and convenient graphic markings help dial in the perfect setup. Product details - Oversized 35mm clamp diameter offers lighter weight and higher strength than 31.8mm diameter - Quad-butted, tapered wall, 7050-T6 aluminum construction - Laser-etched brake lever position lines for spot-on control setup

Rally RS100 is tested to the extreme, so you can ride there too. This single-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to increase reliability. Featuring a superior design with sensors housed inside, this pedal installs like any other pedal. And it's quick to transfer between bikes. - Reliable Readings—By reliably measuring your cadence and forces detected on the left pedal, Rally RS100 doubles the value to provide total power. Want more metrics? Upgrade later to the dual-sensing system (sold separately). - Cleat Compatibility—For a comfortable ride, this pedal is designed to fit your favorite Shimano SPD-SL cleats. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round with a transferable spindle that can be installed in the Rally RS/Rally RK road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 328g - Water resistance: IPX7 - Cleat type: SPD-SL - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RS100 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

An integral part of the Shimano Ultegra 12-speed road lineup, the FC-R8100 crankset builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the Ultegra crank is now offered in a wide variety of lengths, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanic requirements. - Optimal balance of stiffness, strength, weight and rotational performance - Hollowglide structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting - 148mm Q-factor - 44.5mm chainline

Shimano Altus BR-CT91 cantilever brakes offer confident and reliable braking at a convenient price point. - Brake Lever Actuation: Short Pull - Brake Mount Type: Canti Studs - Material: Aluminum - Pad Attachment Style: Threaded Post - Weight: 204g

Elegant style meets incredible weight savings with the XXX Cable and Housing set. It's time to take your road machine to the next level. Linked alloy housing is up to 40% lighter than traditional alternatives, while also being more flexible and incredibly smooth for class-leading performance. Product details - This lightweight, flexible, and elegant kit is perfect for the demanding rider - Compatible with road brake systems - Ultra-low-friction cables are 2300mm and 1700mm long, for front and rear road brakes - XXX housing features Pro lube and is lighter, more flexible, and stiffer than standard - Kit includes XXX brake ferrules, frame protectors, and cable end caps - For installation instructions, visit: trekbikes.com/manuals - Included stainless steel cables are rust-proof and come pre-stretched

Dimension Stem Column Adaptors - Total quill length 180mm - Measurement from minimum insertion to top of steerer adaptor is 118mm - Alloy - Quill insertion diameter: 1-inch

Steel single sprockets with galvanized finish. - Lockring included - Cassette Body Type: Campagnolo 9 Speed - Drivetrain Speeds: 9 - Weight: 212 grams (12-23)

SRAM's X5 10-Speed Rear Derailleur provides precise, dependable shifting along with long-term durability. Its aluminum construction keeps the weight down, while SRAM's 1:1 actuation ratio and direct cable routing provide quick, reliable shifts.

Shimano's Deore Hydraulic Brakes offer true performance at an entry-level price. Servo Wave lever actuation is a direct trickle down from Shimano's race-winning, pro-level disc brakes, with shorter lever stroke, increased pad clearance, and insane power right at your hands. I-Spec compatible design streamlines your handlebar setup by mounting your brake levers and shifter pods (sold separately) to the same clamp. Installation and adjustment is fast and easy thanks to the brake caliper's post-mount design, and the hydraulic line is pre-bled. Just mount them up and hit the trails!

The SRAM Force 1 rear derailleur adopts all the technologies of SRAM 1x MTB to provide the fastest, quietest 1x shifting available. SRAM’s unique clutch system eliminates chain slack, providing for smoother, quieter, and more secure chain travel. - A dedicated 1x rear derailleur - EXACT ACTUATION for fast and accurate shifts using SRAM’s 1:1 actuation ratio (shifter cable travel: derailleur movement). - 10- and 11-speed compatible - X-SYNC pulley features a 12-tooth design that helps control the chain’s lateral movement - X-HORIZON “straight parallelogram” design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force - ROLLER BEARING CLUTCH’s one-way roller clutch controls chain tension for consistent shifting - Cage Lock technology makes for fast wheel changes or chain installation - Available in Short: 11-26 through 11-28 / Medium: 11-26 through 11-36 / Long 11-32 through 10-42 cage lengths Short Cage: Chain Wrap Capacity (teeth): 18 teeth Largest Cog: 28 Weight: 250 g Medium Cage: Chain Wrap Capacity (teeth): 26 teeth Largest Cog: 36 Weight: 262 g Long Cage: Chain Wrap Capacity (teeth): 32 teeth Largest Cog: 42 Weight: 271 g

Combining Shimano's Di2 platform and the road incarnation of Hyperglide+, the Ultegra FD-R8150 front derailleur shifts between chainrings with the fast and seamless action. - Small, sleek and lightweight front derailleur - Frontal area is smaller than previous designs to reduce aerodynamic drag - Top gear teeth capacity: 50-54t - 61-66 degree chainstay angle - Includes 1 SD300 port

Shimano's SLX Front Derailleur is made for long-travel, all-mountain bikes with a double ring set up. The compact cage design gives you improved rear tire clearance while the matched radius reduces chain drop. The dual-pull design allows this derailleur to be used with top- or bottom-pull cable routing. It's super stiff for the quick, authoritative shifts that serious mountain bikes demand.

SRAM's Force DoubleTap Control Levers offer a competitive advantage that can't be touched since you're able to shift from the hoods, drops, and even when sprinting. They're crafted with carbon and magnesium to create a system so light that it won't slow you down whether you're racing for prizes, bragging rights or World Championships. Plus, the single-lever-shifting design allows for fast, smooth shifts while being completely independent of the brake levers, eliminating the possibility of braking when you shift. The front shifter uses Zero-Loss technology, when shifting, the cable is engaged instantly for precise gear changes. And both levers incorporate the popular reach adjust feature that allows you dial in exactly where your levers are in relation to your bars.

SRAM's Professional Shift Cable System by Gore Ride-On is a nice upgrade shift-cable kit. It boasts 2 cables coated by Gore to be super smooth and their compression-free 5mm-diameter housing. You get ferrules and cable crimps, plus Gore's Grub Seal and MTB Grub Seal, too.

SRAM's X9 Front Derailleur sports a forged-aluminum cage and a cutout design for exceptional durability with minimal weight. It provides, crisp, precise action for fast, smooth and reliable shifting season in and season out.

Performance and comfort brilliantly come together in Bontrager's Paradigm RL saddle. Superior cushioning on top of a carbon fiber-reinforced shell with hollow titanium rails make this sleek, minimalist saddle stylish and comfortable. To dial in the fit, Bontrager built the Paradigm in 3 different widths with size specific curvature that provides a custom fit for your sit bones. With ergonomic features like multi-density foam and a Contour Relief Zone that relives pressure on sensitive areas, you can focus on going flat out fast.

Enjoy excellent support and comfort aboard Fizik's Arione R3. The Wing Flex shell moves with the rider's pedal stroke, offering unmatched comfort and an exceptional fit. And, as always, it boasts the features and quality you expect from a Fizik: a Microtex cover with efficiency-enhancing thigh glides, light, strong Kium rails, and supportive, comfortable padding for on-the-road comfort.

Put the power down with Origin-8's Alloy Crankarm Set. Made of light and durable forged aluminum and for a single chainring and square-taper bottom bracket (both sold separately), these crankarms are great for your sweet urban rig or mountain bike.

Converts braze-on front derailleurs to clamp-on. Available in multiple clamp diameters.

• High-tensile steel construction • Springer suspension • Threaded • 1-inch diameter (7/8-inch inner diameter) • 20-inch version steerer length: 148mm • 26-inch version steerer length: 180mm

The Cross Single XL Chain Catcher coupled with a K-Edge Ring Guard is the ultimate lightweight set-up for a single ring cyclocross set-up. The adjustable cross XL foot mounts to its own CNC sculpted lightweight clamp and adds additional protection to a single ring set-up by preventing the chain from jumping up or off the ring. - Material: 6061 T6 CNC machined Aluminum - Fitment: All frames with a round mounting area - Clamp Sizes: 31.8mm, 34.9mm - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded.

Cane Creek's Aheadset is a simple, affordable solution for your headset needs. • Bearing Type: Cup and Cone • Color: Black • Crown Race: 30 • Defined Color: Black • Lower Stack Height: 5 mm • S.H.I.S Lower: ZS44 • S.H.I.S Upper: ZS44 • S.H.I.S. Stem Clamp Diameter: 28.6 • Upper Stack Height: 10 mm • Weight: 130 g

Rocket II direct cable adjusters fit into Shimano STI shifters with external shift cable routing. - Rubber coated adjusting knobs for firm grip - Adjustable on the fly - 4mm

Jagwire's Mountain Sport Disc Brake Pads (Hayes) feature a low-noise, semi-metallic compound mounted to a steel backing plate for excellent braking performance and durability.

Pro Compressionless brake housing eliminates flex from cable actuated braking systems, increasing power and improving lever feel. - KEB-SL - linear strand, Kevlar reinforced, compressionless brake housing with Slick-Lube liner - Perfect for full-housing, high-performance bikes with mechanical disc or rim brakes - 20 black alloy lined end caps, 10 black POP end caps included

- X101: hi-performance, chamfered, anti-drop, lightweight, Singlespeed chain for Mountain, BMX, Fixie, Track applications - Z410: bushingless design for normal BMX and Singlespeed use - Z410HD: heavy duty model has thicker sides plates for 25% higher tensile strength than Z410 - Z-710: specially shaped, extra-thick outer plates and bulls-eye riveting for frequent grinding - S10: stainless steel construction great for electric bikes, internal gear hubs, and beach cruisers - Width = 1/8-inch