The High Flange Rear is a single speed hub with large diameter flanges. Many options are available for threading, axle spacing, and spoke count.
We machine these hubs from three inch round bars of 6061 aluminum. The hub shells are put through four different machining processes before they go to finishing, and the end result is something we're very proud of. The wide flanges have six window cutouts in them to save weight and draw on the influence of classic track hubs.
The hub shells are available with dedicated fixed gear threading on one side only, or in a flip-flop version with fixed threading on one side and freewheel threading on the other. Proper left-handed lockring threading keeps fixed gear cogs secure, and our heavy-duty stainless steel lockring is included.
The axle is ground from 7075 aluminum, which has a great strength to weight ratio. The outer lock nut faces are made of knurled steel for a solid grip against dropouts. Two axles are available with 120mm or 130mm outer lock nut spacing. The ends of the axle are threaded to receive our stainless steel axle bolts. Spare parts are available to convert between axle lengths.
We use high-fill sealed bearings in the High Flange Rear, and they can be adjusted with our simple adjuster ring.
The chainline on the High Flange Rear is spaced to 44mm for the fixed cog, and 48mm for the freewheel.
Four spoke hole drillings are available from 24 to 48 holes, and the spoke holes are chamfered to reduce stress on the head and elbow of the spoke.
Material: 6061 Aluminum
Finish: Anodized or Polished
Anodized Color: Black
Dimensions: Axle Spacing: 120mm or 130mm
Flange Diameter: 65m
Center to Flange: 32.5mm
Fixed Chainline: 44mm
Freewheel Chainline: 48mm
Spoke Holes: 24, 28, 32, 36 or 48
Fixed/Freewheel Threading: English 1.37x24tpi
Lockring Threading: English 1.29x24tpi