The BionX Torque Blocker is an axle washer that correctly orients the notch on the BionX axle. For BionX SL 350HT Electric Bike Conversion Kits only.
If you have non-vertical dropouts on your bike, you will need to select the torque blocker with the angle appropriate for your dropouts.
Unlike the previous BionX® motors, the SL motors do not have a pressed on torque blocker. The new version is slotted, and does not require the use of a puller to remove or reposition. The BionX Limited Edition SL XL kits will all include the standard 27° torque blocker.
The new SL motors, like the original G1 BionX motor, require that the axle notch be oriented in the 6 o'clock position for the torque sensor to function correctly. If the axle notch does not point in the 6 o'clock direction, alternate collars can be ordered from Bike Tech Shop.
To determine the angle that best matches the center of the dropouts on your bike, download and print this Torque Blocker Guide:
Torque Blocker Guide for Bionx SL Motors
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