2010  Trek  3900
Bicycle TypeMountain bike, front suspension
MSRP (new) $459.99
WeightUnspecified
Sizes13", 16", 18", 19.5", 21", 22.5"
ColorsMatte Black, Matte Orange
Item ID19947

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Frame & Fork
Frame ConstructionTIG-welded
Frame Tubing MaterialAlpha White Aluminum
Fork Brand & ModelSR Suntour SF9 XCT V2, 100mm travel
Fork MaterialSingle crown
Rear ShockNot applicable

Components
Component GroupMountain Mix
BrakesetTektro V-brake brakes, Shimano EF-50 levers
Shift LeversShimano EF-50
Front DerailleurShimano C051
Rear DerailleurShimano M-360
CranksetShimano M191, 42/34/24 teeth
PedalsWellgo Nylon Platform
Bottom BracketUnspecified
BB Shell WidthUnspecified
Rear Cogs8-speed, 11 - 32 teeth
ChainUnspecified
SeatpostBontrager SSR, 31.6mm diameter
SaddleBontrager SSR
HandlebarBontrager Approved Riser
Handlebar ExtensionsNot included
Handlebar StemBontrager Approved
Headset1 1/8" threadless VP-A68-TK

Wheels
HubsFormula FM-31 alloy
RimsBontrager 550
Tires26 x 2.00" Bontrager LT-3
Spoke BrandUnspecified
Spoke NipplesUnspecified

Years this model was made:

2010

2009

2007

2006

2005

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