For sale, a used Sram Dual Drive rear hub.
This is a 3 speed hub with a cassette free-hub which makes for an alternative to having a front derailier setup, especially useful on folding bikes.
The over lock nut distance is 135mm.
32 spoke holes.
The spline length of the free hub is 35mm. I have done a test fit and can confirm that it will take both 8 and 9 speed cassettes.
It should operate from most Shimano flat bar 3 speed gear changers.
The click box is included, although the plastic cover for the cable clamp is missing, this does not affect performance, its for aesthetics.
It is not built into a wheel so I have not been able to test it thoroughly. However the speed of the hub relative to free-hub body does change in the 3 different gear selector positions.
Condition overall is good, bearings feel fine and there are some deformation marks left by the spokes when it was part of a complete wheel. The selector rod is a little bent at the end but I believe this is caused by the gear selector lever in the click box acting on the selector rod.
It can be collection from south Nottingham, NG11 or I can post it for £3.
Thanks for reading.
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