89A weights for high elevation use on an Apex Mountain

NMYami

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Has anybody used the 89A-10 weights on an Apex Mountain? Did a search and found some info on the use of these or similar weights on RX-1s. Any suggestions? Set-ups, etc?
 
Wow, nobody? I know there were some people on here that experimented with these weights and others on RX-1 Mountain sleds. Any thoughts or combos that might work on the Apex?
 
i used 89L with my rx-1 with a 151 inch track, worked good, but those weight was'nt really good with a bigger track 162 x 16 x 2.5. I got better luck with 8bu-00 with a huge track.

the keep the rpm steady, but not as good as 8bu. I think with the shorter track, they pull harder than 8bu

i know snowfever on here ran his buddy apex with 89L, but not 89A
 


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