Product Details
The Specialized Tarmac SL8 Force AXS E1 Contender Custom build represents the pinnacle of modern race bike engineering. After eight generations and over two decades of development, the Tarmac SL8 delivers a combination of aerodynamics, lightweight construction, and ride quality previously thought impossible, creating what Specialized calls the world’s fastest race bike.
Built on the revolutionary Tarmac SL8 FACT 10r carbon frame using Rider First Engineering, this bike achieves unprecedented performance metrics: 16.6 seconds faster over 40km than the SL7, more aerodynamic than the Venge, and featuring a 685-gram frameset that’s 15% lighter than its predecessor. The innovative Speed Sniffer nose cone and repositioned steer tube create the sharpest leading edge Specialized has ever designed, optimizing airflow where it matters most while maintaining UCI minimum weight with a full aero setup.
Perfect for racers and performance enthusiasts who demand nothing less than the fastest, the Tarmac SL8 Force AXS E1 delivers a massive 33% improvement in stiffness-to-weight over the SL7 while being 6% smoother in the saddle. With World Championship-proven geometry, 32mm tire clearance, and co-development input from world-class athletes like Remco Evenepoel and Demi Vollering, this bike goes like hell and rides like heaven.
This Contender Custom build elevates performance with SRAM’s Force E1 2x12 wireless electronic drivetrain, delivering precise, reliable shifting without cables for clean aesthetics and ultimate simplicity. The Roval Rapide C 38 Disc tubeless-ready wheelset provides the ideal balance of aerodynamic efficiency and all-around performance, making this build equally capable whether sprinting for town lines or grinding out training miles.
Key Features
- Frame - Tarmac SL8 FACT 10r Carbon
- Drivetrain - SRAM Force E1 2x12 Wireless Electronic
- Wheelset - Roval Rapide C 38 Disc Tubeless-Ready
| Specification | Detail |
|---|---|
| Frame | Specialized Tarmac SL8 Frameset Gloss Dune White / Black Pearl Over Ashen 58 |
| Handlebars | Specialized Roval Rapide Road Handlebar Black / Charcoal 44cm |
| Shifters | SRAM Force AXS HRD Shift-Brake System E1 |
| Chainring | SRAM Force 2x Chainring Kit Black 48/35t |
| Crankarms | SRAM Force AXS Crank Arm Assembly, 8-Bolt Direct Mount, Gloss Carbon, D1 DUB Spindle Interface, 172.5mm |
| Bottom Bracket | SRAM DUB English Bottom Bracket - English/BSA, 68/73mm, Black |
| Front Derailleur | SRAM Force AXS Front Derailleur E1 |
| Rear Derailleur | SRAM Force AXS Rear Derailleur E1 |
| Chain | SRAM Force E1 Chain Silver 126 Links |
| Cassette | SRAM Force E1 XG-1270, 12-spd Cassette 10-33 |
| Rotors | SRAM Rotor Centerline 2 Piece Centerlock 160mm Black Rounded |
| Wheelset | Roval Rapide C 38 Disc Wheelset |
| Tires | Pirelli P ZERO Race TLR Tire 700 x 28, Tubeless, Folding, Black, TechWall+, SmartEvo |
| Bar Wrap | Hi Line Royal Wrap Bar Tape Tacki Black 2.5mm |
| Saddle | Fizik Antares Saddle R5 Alloy Rails |
| Size | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Crank Length | 165mm | 165mm | 170mm | 172.5mm | 172.5mm | 175mm | 175mm |
| Handlebar Width | 380mm | 380mm | 400mm | 400mm | 420mm | 420mm | 440mm |
| Stem Length | 75mm | 75mm | 90mm | 100mm | 100mm | 110mm | 110mm |
| Saddle Width | 155mm | 155mm | 155mm | 143mm | 143mm | 143mm | 143mm |
| Seatpost Length | 300mm | 300mm | 300mm | 380mm | 380mm | 380mm | 380mm |
| Frame Stack | 501mm | 514mm | 527mm | 544mm | 565mm | 591mm | 612mm |
| Frame Reach | 366mm | 375mm | 380mm | 384mm | 395mm | 402mm | 408mm |
| Stack to Stem | 509mm | 522mm | 535mm | 552mm | 573mm | 599mm | 620mm |
| Reach to Stem | 363mm | 372mm | 377mm | 381mm | 393mm | 400mm | 406mm |
| Head Tube Length | 99mm | 109mm | 120mm | 137mm | 157mm | 184mm | 204mm |
| Head Tube Angle | 70.5° | 71.75° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| BB Height | 266mm | 266mm | 266mm | 268mm | 268mm | 268mm | 268mm |
| BB Drop | 74mm | 74mm | 74mm | 72mm | 72mm | 72mm | 72mm |
| Trail | 71mm | 63mm | 58mm | 58mm | 55mm | 55mm | 52mm |
| Fork Length, Full | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm |
| Fork Rake / Offset | 47mm | 47mm | 47mm | 44mm | 44mm | 44mm | 44mm |
| Front Center | 572mm | 574mm | 577mm | 579mm | 592mm | 606mm | 613mm |
| Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |
| Wheelbase | 970mm | 973mm | 975mm | 978mm | 991mm | 1006mm | 1013mm |
| Top Tube Length, Horizontal | 496mm | 509mm | 531mm | 541mm | 563mm | 577mm | 595mm |
| Bike Standover Height | 723mm | 735mm | 746mm | 768mm | 786mm | 808mm | 834mm |
| Seat Tube Length | 433mm | 445mm | 456mm | 473mm | 494mm | 515mm | 545mm |
| Seat Tube Angle | 75.5° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |