Product Details
The Specialized S-Works Tarmac SL8 Frameset delivers unmatched speed through a combination of aerodynamics, lightweight construction, and ride quality that was previously considered impossible. After eight generations and over two decades of refinement, this frameset represents the world's fastest race bike. Real-world race simulations conducted by Specialized's Ride Science team demonstrate decisive advantages: 16.6 seconds saved over 40km courses, 128 seconds gained over Milan San Remo distance, and 20 seconds faster on the iconic Tourmalet climb.
Advanced aerodynamic development focuses on the leading edge, where airflow impact is greatest. The innovative nose cone design repositions the steer tube rearward, creating a significantly sharper head tube profile with reduced drag. Taking advantage of current UCI regulations, the frameset incorporates Specialized's narrowest, most aerodynamic seatpost design to manage turbulent airflow efficiently. This aerodynamic optimization surpasses even the Venge, establishing new benchmarks for road bike speed.
The extraordinary 685-gram frame weight represents a 15% reduction from the SL7 while maintaining the lightest weight among World Tour race bikes. Engineering principles developed for the Aethos inform the frame's efficient load-carrying structure throughout the down tube, seat tube, and rear triangle. This optimized shape eliminates the need for redundant carbon reinforcement layers, achieving both lightweight construction and the ability to meet UCI minimum weight requirements with complete aerodynamic equipment.
Remarkable stiffness-to-weight advancement, a 33% increase over the SL7, enhances the proven handling characteristics and championship-winning geometry. Improved pedaling stiffness and bar precision combine with enhanced saddle compliance that increases vertical flex by 6%, providing exceptional comfort over rough surfaces. Rider-First Engineering methodology delivers consistent ride quality and handling across all frame sizes. The geometry retains 32mm tire clearance, matching the SL7, maintaining proven positioning while allowing higher-volume tire options.
Built for riders demanding the fastest platform available, the S-Works Tarmac SL8 Frameset includes a 68mm threaded bottom bracket, flat-mount disc brake compatibility, and streamlined component integration, the ideal foundation for building the ultimate race machine.
Key Features
- Frame: S-Works FACT 12r Carbon (685g) with Advanced Aerodynamic Shaping
- Aerodynamics: Leading-Edge Optimization Surpassing Previous Venge Design
- Weight: 15% Reduction from SL7, World Tour's Lightest Race Platform
- Stiffness: 33% Stiffness-to-Weight Improvement with Enhanced Compliance
- Compatibility: Rider-First Engineering, 32mm Tire Clearance, Threaded BB
| Specification | Detail |
|---|---|
| Frame | S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc |
| Seatpost | S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset |
| Seat Binder | Tarmac integrated wedge |
| Headset | Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use |
| Product ID | 221575 |
| Weight | 1.38 kg (3 lb, 0.7 oz) |
| Weight Size | 56 |
| Frame Size | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Seatpost Length | 300 | 300 | 300 | 380 | 380 | 380 | 380 |
| Frame Stack | 501 | 514 | 527 | 544 | 565 | 591 | 612 |
| Frame Reach | 366 | 375 | 380 | 384 | 395 | 402 | 408 |
| Stack to Stem | 509 | 522 | 535 | 552 | 573 | 599 | 620 |
| Reach to Stem | 363 | 372 | 377 | 381 | 393 | 400 | 406 |
| Head Tube Length | 99 | 109 | 120 | 137 | 157 | 184 | 204 |
| Head Tube Angle | 70.5 | 71.75 | 72.5 | 73 | 73.5 | 73.5 | 74 |
| BB Height | 266 | 266 | 266 | 268 | 268 | 268 | 268 |
| BB Drop | 74 | 74 | 74 | 72 | 72 | 72 | 72 |
| Trail | 71 | 63 | 58 | 58 | 55 | 55 | 52 |
| Fork Length, Full | 370 | 370 | 370 | 370 | 370 | 370 | 370 |
| Fork Rake/Offset | 47 | 47 | 47 | 44 | 44 | 44 | 44 |
| Front Center | 572 | 574 | 577 | 579 | 592 | 606 | 613 |
| Chainstay Length | 410 | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase | 970 | 973 | 975 | 978 | 991 | 1006 | 1013 |
| Top Tube Length, Horizontal | 496 | 509 | 531 | 541 | 563 | 577 | 595 |
| Bike Standover Height | 723 | 735 | 746 | 768 | 786 | 808 | 834 |
| Seat Tube Length | 433 | 445 | 456 | 473 | 494 | 515 | 545 |
| Seat Tube Angle | 75.5 | 75.5 | 74 | 74 | 73.5 | 73.5 | 73 |