Chain case sprockets?

[weierkd]

After converting my 04 ProX2 700 to a 136", I am wondering what gears would work best. The top gear is 25T and bottom is 41T. Any suggestions of what to switch these to? Also, would I need a new chain?

 

[raceinsnow]

The 04 700 switch is running a 23-39 gear set with a 74 pin chain.Your stock chain is a 76 pin so it will have to replaced.

 

[weierkd]

Thanks for the input!