How close are those top CIM mounting screws to the upper wall of the tubing? Are you having to remove wall material to thread those screws in? Would you if you increased to 1/8" wall tubing?
What's the clearance between those same CIM mounting screws and the cluster gear?
What retains the output shaft from shifting?
Quote:
Originally Posted by Chris is me
You really want to use 12T (or 11T) pinions on an enclosed gearbox like this because you are giving up the ability to use the CIM boss to pilot the gearbox when using a 14T gear, since your hole has to be big enough to clear the gear
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It appears to me the hole on the CIM side of the tubing is sized to pilot the boss, and the 14T pinions are to be installed via the hole on the opposite side of the tubing once the CIMs are already screwed in.