Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Data limitation

    No geometry is recorded for 2012 Surly Steamroller and 2007 Surly Steamroller.

  2. Gearing

    2012 Surly Steamroller has a 18% lower climbing ratio than 2007 Surly Steamroller.

    A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.

  3. Identity & price

    2007 Surly Steamroller had an original MSRP $120 lower than 2012 Surly Steamroller.

    Original MSRP is the published list price when new, not today’s used-bike value.

Gearing comparison

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

2012 Surly Steamroller44T · 19T
Ratio2.32:1

Speed unavailable: wheel or tire size is missing or unclear.

2007 Surly Steamroller48T · 17T · 1-speed
Ratio2.82:1
Estimated speed at 90 RPMGear20.0 mph

Uses front tire 700C×25; rear size isn’t listed.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
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Specification
2012 Surly Steamroller
2007 Surly Steamroller
Overview
Model Year
2012
2007
Brand
Surly
Surly
Model
Steamroller
Steamroller
Bicycle Type
Track
Track
Original MSRP
$820.00
$700.00
Colors
Black, Grey Green
Maroon
Sizes
49cm, 53cm, 59cm, 62cm
49cm, 53cm, 56cm, 59cm, 62cm
Weight
—
—
Frameset
Frame Construction
—
TIG-welded
Frame Material
Surly 4130 CroMoly steel
4130 chromoly
Fork
Surly CroMoly steel
Surly
Fork Material
—
4130 chromoly, unicrown crown
Drivetrain
Component Group
—
Track Mix
Crankset
Andel 44t
Sugino RD, 48 teeth
Bottom Bracket
T.H.C.
Sugino, 108mm spindle
BB Shell Width
—
68mm English
Cassette
19t fixed
—
Rear Cogs
—
1-speed, 17 teeth
Chain
KMC X8.9
SRAM PC-48, 1/2 X 3/32"
Pedals
—
Not included
Brakes
Brakes
Tektro R538
Tektro R356 brakes, Tektro RL-570 levers
Cockpit & Contact Points
Headset
Ritchey Logic Comp
1 1/8" threadless Ritchey Logic Comp
Handlebar
Surly Open Bar
Zoom
Handlebar Extensions
—
Not included
Stem
Kalloy AS-009
Kalloy
Saddle
WTB SST Comp
Velo Endzone
Seatpost
Kalloy SP-248D
Kalloy SP-248D, 27.2mm diameter
Wheels & Tires
Hubs
Surly New Surly New
Front: Surly, Rear: Surly Fixed/Free 120mm
Rims
—
Alex DA-22, 32-hole
Spokes
—
DT Swiss stainless steel, 14ga. (2.0mm) straight gauge
Spoke Nipples
—
Brass nipples
Front Tire
Conti TourRide 700x32c
700 x 25c Maxxis Detonator
Wheel Size
—
700c wheels

Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.

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