Trek has equipped its X-Caliber mountainbikes with a self-developed hub that, due to the special installation width of 141 mm combined with a drop axle, is not available anywhere, but from now on it is available from Vlechtservice!

This hub is equipped with strong industrial bearings and a steel freewheel body, guaranteeing long, worry-free riding.

This wheel is braided with the Zac 421 rim, which matches the original Bontrager rim in terms of looks.

We also have a variant with the Andra 321 rim, which is recommended for heavier bikers from 90 kg. See related articles below.

Rim tape included.

Hub spacing: 
Rear (MM): 141
 
Construction: 
Handmade or machine made: Handmade
Spoke pattern: 3 Cross
Total weight (GR): 1441

Rim Specifications:
Brand: Rigida - Ryde
Model: Zac 421
Color: Black
Size (Inch/MM): 28" / 622
External width (MM): 26,5
Internal width (MM): 21
Weight (GR): 640
Material: Aluminium
Single-walled / Double-walled: Double-walled  disc
Number of spoke holes: 32
Spoke nipple size: 14
Brake surface present: no (disc)

Specifications of the rear hub: 
Brand: Import
Model: UNI
Color: Black
Number of spoke holes: 32GTS
Type of brake: Disc (6 bolts)
Number of gears: HG Body 35 MM = suitable for old type Race (max 10 speed) and all MTB cassettes.
Material of the freewheel body: Steel
Type of axle: Drop axle
Axle included: Yes, quick release
Type of bearings: Sealed bearings
Average weight (GR): 506
Intended use: Trek X-Caliber

Specifications of the spokes: 
Brand: Sapim
Model: Leader
Color: Black
Material: Stainless steel
Spoke thickness: 14G
 
Specifications of the spoke nipples:    
Brand:    Sapim
Color:    Silver
Material:    Brass