2008 Specialized Tarmac SL Frameset vs 2007 Surly Steamroller
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Surly Steamroller
- 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
- +9 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- −7 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Specialized Tarmac SL Frameset numbers we have for size 52 are missing the reach and stack. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Tarmac SL Frameset 52 | Surly Steamroller 56 | Difference |
|---|---|---|---|
| Head tube angle | 73° | 73.5 | +0.5° |
| Seat tube angle | 74° | 73.5 | −0.5° |
| Effective top tube | 537 | 568.0 | +31 mm |
| Chainstay length | 405 | 398.0 | −7 mm |
| Wheelbase | 970 | 978.6 | +9 mm |
| BB drop | 71.5 | 70.0 | −2 mm |
| Standover | 754 | 807.9 | +54 mm |
| Seat tube length | 490 | 560.0 | +70 mm |
| Head tube length | 120 | 136 | +16 mm |
| Reach | not listed | 402.3 | |
| Stack | not listed | 558.8 | |
| Fork length | not listed | 375 |
Differences are the Surly Steamroller minus the Specialized Tarmac SL Frameset. Full charts: 2008 Specialized Tarmac SL Frameset, 2007 Surly Steamroller.
Where each sits in its class
Specialized Tarmac SL FramesetSurly Steamroller
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 | Specialized Tarmac SL FramesetS-Works SL Frameset | Surly SteamrollerSteamroller |
|---|---|---|
| Headset | Specialized Mindset | Cane Creek Custom 5 |
| Frame | not listed | Surly 4130 CroMoly |
| Cassette | not listed | Lida 18t |
| Chain | not listed | KMC Z610H |
| Crankset | not listed | Samox AF19-D45S |
| Chainring | not listed | Samox 45t |
| Bottom bracket | not listed | Shimano UN26 |
| Tire | not listed | Continental Contact Sport |
| Hub | not listed | Surly Ultra New 32 |
| Rim | not listed | Alex Rims Adventurer 2 |
| Brake | not listed | Tektro R539 |
| Handlebar | not listed | Dimension Arc |
| Stem | not listed | Surly HL |
| Seatpost | not listed | Promax SP-2010 |
| Saddle | not listed | WTB Volt Sport |
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