shifter and derailleur can't work well

[New Biker]

Hi all,

I have an old sram 8-spd rear derailleur with a grip shift, I want to change the shifter to a
rapid fire so I won't accidentally change the gear when I ride. I bought an used Shimano LX 8-spd
shifter and hope it will work with the SRam derailleur, but I can only adjust the cable tension so
much that the shifter can only shift to half of the cogs. Is it due to incompatibility or the
shifter I bought is no good at all, if I get a Shimano XT/LX rear derailleur will it work?

Thanks for any recommendation.

 

[crazy6r54]

If its a Sram 5.0,7.0,or 9.0 derailleur it won't work with Shimano.

Fire up MTB 03

 

[New Biker]

Thanks for the information, my rear derailleur is SRAM 5.0, that's why it doesn't work with a LX
shifter. I bought a used Shimano XTR 8-speed rear derailleur for $25.00 (according to the owner,
it's still in working condition. hope he is righr). This should solve my problem.

Thanks everyone.

<[email protected]> wrote in message
news:[email protected]...
> If its a Sram 5.0,7.0,or 9.0 derailleur it won't work with Shimano.
>
> Fire up MTB 03