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- New rear hub from the prestigious Asian brand Extention.
- Made of high-quality CNC machined aluminum.
- 116 mm spacing, designed for use on the Extention Rise 20" trials bike.
- Splined type sprocket mounting system, which greatly facilitates sprocket installation and removal. With this system, the sprocket is inserted and removed by hand, and secured with a threaded aluminum cover.
- 32 spoke holes, compatible with most trials bike rear rims.
- High-quality sealed and replaceable bearings, ensuring smooth, reliable, and durable performance.
- Standard 6-bolt IS disc brake mount.
- Includes M6 x 30 steel bolts and washers for secure attachment.
- Includes 7075-T6 aluminum Lock-Ring nut for installing the fixed gear sprocket. It is tightened with a special Shimano tool.
- Fixed sprocket not included. A compatible Extention cassette fixed gear sprocket must be installed separately, available on our website here.
Compatibility
- Compatible with those frames that have 116 mm spacing and don’t require snail cams. If you’d like to install some snail cams on it, you must replace the 6 mm and 11 mm spacers by some 3 mm and 8 mm ones, and then you’ll be able to add some 3 mm snail cams.
- Compatible only with Extention cassette fixed sprocket.
Dimensions
- Axle spacing: 116 mm.
- Spacers thickness: Sprocket side 6 mm and disc side 11 mm.
- Axle diameter: Ø 10 mm.
- Number of spoke holes: 32 (32H).
- Flange diameter: 64 mm (disc side) and 53 mm (sprocket side).
- Flange spacing: 57 mm.
- M6 x 30 mm Allen bolts.
- Cassette thread diameter: 31 mm.
- Cassette thread width: 6 mm.
- Lock-Ring width: 6 mm.
- Bearing reference: 6002RS on both sides.
Color
- Black anodized with engraved Extention logo.
Weight
- 180.14 g (+ 21.40 g of bolts and washers).
| COLOR | Black |
| SPOKE HOLES | 32 spokes |
| BRAKE MOUNTS | Disc |
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