2009 Nytro XTX clutching/gearing question

[bradb]

Hi I have a 2009 Nytro XTX and so far I have went from 21 tooth top gear to a 19 tooth, and I have put 151" x 2" paddle track under it. If I drill the rivets out will that good enough for 7000' to 9000'. Thanks

 

[nitris223]

MTX 8FS weights come empty and they have a 39* helix. Not sure what weights are in your XTX and your helix is probably a 43*.