REAR HUB: Sealed 10mm with 18t Freewheel

also the dropout is heat treated before welding making it extra tough

The alloy cogs are anodized black with laser-etched graphics

MATERIAL: 4140 Cr-Mo

Aero profile rim design

Box One Rear Race Rim supplier_54521951355206 REAR HUB: Sealed 10mm withBox One rims have a no nonsense low profile design that eliminates excess material, making them some of the lightest weight double wall rims available. A 20 x 1. 75 rim, for example, weighs just 362 grams 12. 7 ounces. Strong and true, Box One rims have single eyelets to help prevent spoke pull through, which means higher spoke tensions are possible. Available in 36 hole 20 and 24 x 1. 75 inch, and 28 hole 20 and 24 x 1 1 8 inch sizes. Meets or