VelopediaBicycle Archive ยท Specification report

2012 Schwinn Sierra 21

Velopedia Archive ID 5049641

Overview

Model year2012
BrandSchwinn
ModelSierra 21
Bicycle typeHybrid/Comfort
Archive ID5049641
Original MSRP$440.00
ColorsGrape, Red, Sterling Silver
SizesL, M, S, XS

Frameset

Frame materialSchwinn Comfort Aluminum
ForkSuntour M3010 63mm

Drivetrain

ShiftersShimano Tourney Revo
Front derailleurShimano Tourney
Rear derailleurShimano Altus 7spd
CranksetSchwinn S Logo 42/34/24t
Bottom bracketCartridge
CassetteShimano Tourney 7spd 14-34t
ChainKMC Z-51
Pedalsplastic body w/ reflector

Brakes

BrakesSchwinn Alloy V-Brake

Cockpit & contact points

HeadsetVp Threaded 1 1/8"
HandlebarScwhinn Comfort Steel
StemSchwinn Alloy Quill Adj.
SaddleSchwinn Comfort Spring
SeatpostSchwinn Alloy Suspension

Wheels & tires

HubsKT Alloy 32 hole KT Alloy 32 hole
Front tireDuro Sierra 26x1.75

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 8, 2026.