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.
- Identity & price
These bicycles are categorized differently: 2006 GT Timberline LTD is Mountain; 2007 GT Timberline LTD is City & Commuter.
- Data limitation
No geometry is recorded for 2006 GT Timberline LTD and 2007 GT Timberline LTD.
- Data limitation
Only 2006 GT Timberline LTD 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.
Lowest0.82:1Highest4.36:1Total range530%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.1; rear size isn’t listed.
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
2006 GT Timberline LTD
2007 GT Timberline LTD
Overview
Model Year
2006
2007
Brand
GT
GT
Model
Timberline LTD
Timberline LTD
Bicycle Type
Mountain bike, front suspension
Comfort/commuter
Original MSRP
$429.99
Not documented
Colors
—
—
Sizes
S, M, L, X, XL
S, M, L, XL, XXL, women's small, women's medium
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
7000 aluminum
Aluminum
Fork
SR NRX -6000
SR NRX-6500
Fork Material
Steel/aluminum/magnesium
Aluminum/magnesium, single crown
Drivetrain
Component Group
Mountain Mix
Comfort Mix
Shifters
Shimano 8 speed C-50 twist shifter
Shimano C-50 twist shifter
Front Derailleur
Shimano FD-C202
Shimano C-102
Rear Derailleur
Shimano Acera
Shimano Alivio
Crankset
Shimano TX-71, 28/38/48 teeth
Shimano Alivio
Bottom Bracket
Cartridge
Shimano Cartridge
Rear Cogs
8-speed, 11 - 34 teeth
8-speed, 11 - 34 teeth
Chain
Shimano CN-HG50
Shimano CN-HG50
Pedals
Dual surface nylon comfort pedal
Nylon Comfort
Brakes
Brakes
Direct pull, with 110 mm arms brakes, Alloy with soft touch lever , for direct pull levers
Tektro Direct pull brakes, Alloy levers
Cockpit & Contact Points
Headset
1 1/8" sealed mech
1 1/8" threadless sealed mech
Handlebar
30mm Riser 6degree bend, anatomically sized
Anatomic
Handlebar Extensions
—
Not included
Stem
Adjustable, 55 degree range of movement with 2-bolt face plate
Adjustable quill-style
Saddle
Selle Royal Look in
Look In
Seatpost
Aluminum Suspension with elastomer
Aluminum Suspension
Wheels & Tires
Hubs
Front: Alloy QR, Rear: Alloy 8 speed Cassette
Front: Alloy QR, Rear: Shimano cassette
Rims
Alloy ATB w CNC sidewall
Alloy ATB w CNC sidewall
Spokes
Stainless steel, 14ga. (2.0mm)
Stainless steel, 14ga. (2.0mm) straight gauge
Spoke Nipples
Brass CP
Brass CP
Front Tire
26 x 2.10" GT Guardian with Kevlar flat protection
26 x 1.90" Tioga City Slicker
Wheel Size
26" wheels
26" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.