2026 Ridley Grifn Shimano 2x12s vs 2025 Specialized Tarmac SL8 LTD
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Tarmac SL8 LTD
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- −65 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Ridley Grifn Shimano 2x12s numbers we have for size L are missing the reach, stack and chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Ridley Grifn Shimano 2x12s L | Specialized Tarmac SL8 LTD 54 | Difference |
|---|---|---|---|
| Reach | not listed | not listed | |
| Stack | not listed | not listed | |
| Head tube angle | 73.5 | 73° | −0.5° |
| Seat tube angle | 72 | 74° | +2.0° |
| Effective top tube | 420 | 541mm | +121 mm |
| Wheelbase | 1043 | 978mm | −65 mm |
| BB drop | 71 | 72mm | +1 mm |
| Standover | 614 | 768mm | +154 mm |
| Head tube length | 195 | 137mm | −58 mm |
| Chainstay length | not listed | 410mm | |
| BB height | not listed | 268mm | |
| Seat tube length | not listed | 473mm | |
| Fork length | not listed | 370mm |
Differences are the Specialized Tarmac SL8 LTD minus the Ridley Grifn Shimano 2x12s. Full charts: 2026 Ridley Grifn Shimano 2x12s, 2025 Specialized Tarmac SL8 LTD.
Where each sits in its class
Ridley Grifn Shimano 2x12sSpecialized Tarmac SL8 LTD
Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Ridley Grifn Shimano 2x12sShimano 105 DI2 2x12s | Specialized Tarmac SL8 LTDS-Works LTD |
|---|---|---|
| Frame | Ridley Grifn | Specialized S-Works Tarmac SL8 FACT |
| Fork | 4za AllRoad | not listed |
| Shifter | Shimano 105 | SRAM RED AXS |
| Derailleur | Shimano 105 Di2, Shimano 105 | SRAM Red AXS |
| Cassette | Shimano 105 | SRAM RED XG-1290 |
| Chain | Shimano 105 DI2 | SRAM RED |
| Crankset | Shimano 105 | SRAM RED AXS Power Meter |
| Wheelset | DT Swiss G1800 | Roval Rapide CLX II |
| Tire | Zaffiro Evo V | Specialized S-Works Turbo Rapidair 2Br |
| Brake | Shimano 105 | SRAM Red AXS |
| Handlebar | 4za Stratos | Roval Rapide Cockpit |
| Stem | 4za Stratos | Roval Rapide Cockpit |
| Seatpost | Forza Cirrus | not listed |
| Saddle | Selle San Marco Shortfit 2.0 | Specialized S-Works Power |
| Bottom bracket | not listed | SRAM DUB |
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