We designed Aspero with clearance for up to 700c x 40mm tires or 650b x 49mm tires. Of course, there are variables—rim width, tire casing, and tread depth—which will affect final clearance. We always recommend 4mm of clearance between the tire and frame.
Trail—front-wheel response to rider input—is the most critical factor in high-velocity handling. Flipping the two-position "Trail Mixer" to compensate for the difference in circumference between a 650b and 700c tire maintains consistent handling by maintaining consistent trail figures.
Stiffness and handling work together to ensure the bike tracks predictably and responds immediately to critical pedal and bracing inputs.
| SIZES | 48, 51, 54, 56, 58, 61 |
| FORK | Cervélo All-Carbon, Tapered Aspero Fork |
| HEADSET | FSA IS2 1-1/8 x 1-1/2 |
| STEM | Cervélo ST27 Alloy |
| HANDLEBAR | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| SEATPOST | Cervélo SP19 Carbon 27.2 |
| SADDLE | Prologo Dimension STN |
| SHIFTERS | SRAM Rival AXS, 12 speed |
| BRAKE CALIPERS | SRAM Rival |
| BRAKE ROTOR | SRAM Centerline Centerlock |
| FRONT DERAILLEUR | - |
| REAR DERAILLEUR | SRAM Rival XPLR AXS, 12 speed |
| CASSETTE | SRAM Rival XPLR, 10-44, 12 Speed |
| CHAIN | SRAM Rival, 12 speed |
| CRANKSET | SRAM Rival, 40T, DUB Wide |
| BOTTOM BRACKET | SRAM DUB, BBright |
| WHEELS | Reserve 40/44 |
| THRU AXLES | Cervelo Aero Thru-Axles, 12x100/142 |
| TIRES | Panaracer Gravel King SK 700x38c |
| MAX TIRE WIDTH (ACTUAL) | 41mm (700c) / 47mm (650b) |
| Accessories | Smartpak 400A Top Tube Storage Bag |
| 48 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Reach | mm | 381 | 398 | 412 | 425 | 437 | 443 |
| Stack | mm | 485 | 506 | 522 | 540 | 559 | 587 |
| Head Tube Angle | 71° | 72.5° | 72.5° | 72.5° | 72.5° | 72.5° |
| Front Center | mm | 582 | 583 | 602 | 622 | 640 | 654 |
| Bottom Bracket Drop | mm | 75 | 75 | 75 | 75 | 75 | 75 |
| Head Tube Length | mm | 87.5 | 101 | 118 | 137 | 157 | 187 |
| Standover Height | mm | 732 | 758 | 773 | 790 | 808 | 836 |
| Trail | mm | 62.4 | 62.4 | 62.4 | 62.4 | 62.4 | 62.4 |
| Wheel Size | 700C | 700C | 700C | 700C | 700C | 700C |
| Fork Offset | mm | 52 | 43 | 43 | 43 | 43 | 43 |
| Wheelbase | mm | 975 | 976 | 995 | 1015 | 1033 | 1047 |
| Chainstay Length | mm | 405 | 405 | 405 | 405 | 405 | 405 |
| Effective Top Tube @75&Deg Seat Tube | mm | 511 | 533 | 551 | 570 | 587 | 600 |
| Effective Top Tube @79&Deg Seat Tube | mm | 475 | 496 | 513 | 530 | 546 | 567 |
