SIZE: 305 349 406 451
Contains: wheels ,rim tape, skewers, cassette spacer
Matieral: Alloy
Rims ：KINLIN, NBR,19mm double wall ,from Taiwan
Hubs: SILVERCOK ,6pawls,72rings,,front 2 bearings ,rear 4bearings, noise sound
O.L.D: front 100mm or 74mm ; rear 135mm
Brake：DISC Brake
Hole: front and rear 24H
Spokes: DT or pilar straight pull
Nipples： alloy
Support 8-11 speed.Weight: appro front 601g, rear 706g ( 100mm /135mm ), 1107g(74/135mm 406)
Size: 451 20" 1 1/8" (about 22") or 20" 406 (it is standard 20")
Fits for Folding bike or minivelo urban bikes.
Origin: Made in China
