2007 Surly Steamroller vs 2008 Specialized Tarmac SL Frameset
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 SL Frameset
- 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
- −31 mm
- Shorter: quicker to change direction
- Head angle
- −1.0°
- Slacker: calmer steering
- Chainstays
- +7 mm
- Longer: more planted
The two frames
Only the Surly Steamroller is drawn. The Specialized Tarmac SL Frameset numbers we have for size 54 are missing the reach and stack.
Geometry side by side
| Measurement | Surly Steamroller 62 | Specialized Tarmac SL Frameset 54 | Difference |
|---|---|---|---|
| Reach | 420.6 | not listed | |
| Stack | 618.1 | not listed | |
| Head tube angle | 74.0 | 73° | −1.0° |
| Seat tube angle | 73.0 | 73.5° | +0.5° |
| Effective top tube | 608.0 | 548 | −60 mm |
| Chainstay length | 398.0 | 405 | +7 mm |
| Wheelbase | 1009.1 | 978 | −31 mm |
| BB drop | 70.0 | 69 | −1 mm |
| Standover | 865.3 | 777 | −88 mm |
| Seat tube length | 620.0 | 510 | −110 mm |
| Fork length | 375 | not listed | |
| Head tube length | 196 | 145 | −51 mm |
Differences are the Specialized Tarmac SL Frameset minus the Surly Steamroller. Full charts: 2007 Surly Steamroller, 2008 Specialized Tarmac SL Frameset.
Where each sits in its class
Surly SteamrollerSpecialized Tarmac SL Frameset
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
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 | Surly SteamrollerSteamroller | Specialized Tarmac SL FramesetS-Works SL Frameset |
|---|---|---|
| Frame | Surly 4130 CroMoly | not listed |
| Cassette | Lida 18t | not listed |
| Chain | KMC Z610H | not listed |
| Crankset | Samox AF19-D45S | not listed |
| Chainring | Samox 45t | not listed |
| Bottom bracket | Shimano UN26 | not listed |
| Tire | Continental Contact Sport | not listed |
| Hub | Surly Ultra New 32 | not listed |
| Rim | Alex Rims Adventurer 2 | not listed |
| Brake | Tektro R539 | not listed |
| Handlebar | Dimension Arc | not listed |
| Stem | Surly HL | not listed |
| Headset | Cane Creek Custom 5 | Specialized Mindset |
| Seatpost | Promax SP-2010 | not listed |
| Saddle | WTB Volt Sport | not listed |
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