The Jump Stop from N-Gear, eliminates "chain suck" or over shooting the low gear on your front chainrings. Made for standard 68-73mm BB. It wlll not work in a Fat Tire application. Comes standard with the Shift Kit. Please specify your seat tube diameter when ordering.
Just what I needed
Posted by Unknown on 08 02 2017
This fixed my chain drops. Shifting to low resulted in the chain falling off about half the time. This unit eliminated that problem.
Posted by tyson on 03 30 2017
i was having a problem and this is the solution
Posted by Dean Meldrum on 04 30 2012
Thanks for the bits, have arrived promptly and happy with the service and communication look
Forward to doing business in the future
Posted by Steven Brown on 03 27 2012
Used this product and Will say it needs improvements it constantly slides loosens up because its plastic and breaks NO GOOD!