Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2011 GT La Bomba and 2012 GT La Bomba.
- Data limitation
Only 2011 GT La Bomba has enough published drivetrain data for gearing calculations.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest1.38:1Highest3.27:1Total range236%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 26×2.35.
Gearing unavailable for this size.
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.
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.
Specification
2011 GT La Bomba
2012 GT La Bomba
Overview
Model Year
2011
2012
Brand
GT
GT
Model
La Bomba
La Bomba
Bicycle Type
Mountain bike, front suspension
Mountain
Colors
Orange
Blue
Sizes
M, L
S, M
Weight
—
—
Frameset
Frame Construction
Aluminum
—
Frame Material
6061-T6 aluminum
Xm Metal Aluminum
Fork
RockShox Recon Silver R, 100mm travel
Rock Shox Recon Silver R 100mm
Drivetrain
Component Group
Mountain Mix
—
Shifters
SRAM X.7
SRAM X7 9spd trigger
Front Derailleur
—
E*13 LS1
Rear Derailleur
SRAM X.9
SRAM X7 9spd
Crankset
FSA Gravity, 36T teeth
FSA Moto-X
Bottom Bracket
FSA Mega EXO
FSA MegaExo
Cassette
Sram PG950
SRAM PG-950 9spd 11-26t
Rear Cogs
9-speed, 11 - 26 teeth
—
Chain
Hg53
KMC X-9
Pedals
GT Slim Line Flat
All Terra Slimline
Brakes
Brakes
Shimano BR-M445 brakes, Shimano BL-M505 levers
Avid Elixir 1 180mm
Cockpit & Contact Points
Headset
1 1/8" FSA Gravity DLR
FSA Gravity 1.5''to 1 1/8''
Handlebar
All Terra
All Terra Al-6061
Handlebar Extensions
Not included
—
Stem
All Terra
All Terra 3D
Saddle
WTB Devo
WTB Volt Comp
Seatpost
All Terra AL2014
All Terra Microadjust 31.6mm
Wheels & Tires
Hubs
Alloy Sealed Bearing
—
Rims
Alex SX-44, 32-hole
Alex SX44 32H
Spokes
Stainless, 14/15ga. (2.0/1.8mm)
—
Spoke Nipples
Brass
—
Front Tire
26 x 2.35 Maxxis High Roller
Maxxis High Roller 2.35
Rear Tire
26 x 2.35" Maxxis High Roller
—
Wheel Size
26" wheels
—
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.