A bit of info please (savage conversion)

[lincpimp]

If you want to convert your tranny to the flux spec just get p/n 100905. It replaces the "spur" gears of the 2 speed with a single steel gear. The flux tranny has the same ratio as a std tranny locked in 1st, and the top and output shafts and gears are the same parts in both trannies. Plus that part number I gave is about 10 bucks, so it is super cheap.

I would go with 5s myself, good motor speed and more power than 4s.

The flux spur will fit, and will give you needed clearance if you plan to mount the motor flux-style below and to the right of the spur. If you plan to make something like the kershaw "high cg" mount then you can use the 47t spur with no issues.

Just did a few savage conversions so if you have any other questions ask away!

James