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 2010 BH Speedrom 105 and 2012 BH Speedrom 105.

  2. Gearing

    2012 BH Speedrom 105 has a 10% lower climbing ratio than 2010 BH Speedrom 105.

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

  3. Identity & price

    2012 BH Speedrom 105 had an original MSRP $399 lower than 2010 BH Speedrom 105.

    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.

2010 BH Speedrom 10550/34T · 12–27T · 10-speed
Lowest1.26:1Highest4.17:1Total range331%
Estimated speed at 90 RPMLowest gear8.9 mphHighest gear29.3 mph

Uses front tire 700C×23; rear size isn’t listed.

2012 BH Speedrom 10550/34T · 12–30T · 10-speed
Lowest1.13:1Highest4.17:1Total range368%

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

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
2010 BH Speedrom 105
2012 BH Speedrom 105
Overview
Model Year
2010
2012
Brand
BH
BH
Model
Speedrom 105
Speedrom 105
Bicycle Type
Road race & triathlon
Road
Original MSRP
$2,399.00
$2,000.00
Colors
—
Red
Sizes
53cm, 55cm, 57cm, 59cm
53cm, 55cm, 57cm, 59cm
Weight
—
—
Frameset
Frame Construction
Carbon
—
Frame Material
BH Speedrom Carbon
Speedrom Carbon
Fork
BH Speedrom Carbon
Prisma Carbon Tapered
Fork Material
Carbon, aero crown
—
Drivetrain
Component Group
Shimano 105 Mix
—
Shifters
Shimano 105
Shimano 105
Front Derailleur
Shimano 105
Shimano 105
Rear Derailleur
Shimano 105
Shimano 105
Crankset
Shimano 105, 50/34 teeth
FSA Omega 34/50t
Bottom Bracket
Shimano 105
—
Cassette
Shimano 105
Shimano CS4600 10spd 12-30t
Rear Cogs
10-speed, 12 - 27 teeth
—
Chain
Shimano 105
Kmc
Brakes
Brakes
Titan dual pivot brakes, Shimano 105 levers
Titan Dual Pivot
Cockpit & Contact Points
Headset
FSA Orbit CE
15mm Alloy Tapered
Handlebar
FSA Omega Compact
FSA Omega Compact
Handlebar Extensions
Not included
—
Stem
FSA OS-190
Titan
Saddle
Prologo Kappa STN
Prologo Kappa
Seatpost
BH Carbon Single Bolt
Carbon
Wheels & Tires
Hubs
Shimano RS10
—
Rims
Shimano RS10
Shimano R501
Front Tire
700 x 23c Vittoria Zaffiro
Vittoria Zaffiro 700x23c
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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