Trx gearbox

[Biker66]

My trx jumps out of gear when your really giving it the beans anyone know what the problem mite be I was hoping it mite be a selector Spring ?

[Mincehead]

Nah sorry, much more likely to be worn dogs on the pinions, like in this image:

[lenny]

Damage to dogs like above can often be repaired with a few minutes careful work with a dremel. Make sure all dogs engage at the same time and undercut the dogs slightly. Check for worn/bent selector forks which can be the cause of dog damage. Also check the star wheel assembly on the end of the selector drum.

[Mincehead]

Yes, you`re right to a point Lenny, of course it does depend how badly they are worn though.

[SDN]

mine was worn selector forks