Just finished 121 to 136 conversion on my 98 700vmax xtc with 6100 miles of unpampered love on the speedo. Went with a 1.25 ripsaw and 110 studs down the middle, 8 tooth anti ratchet drivers, tracks usa rail extension, and max performence tunnel extensions. A special thanks to Mr. Sled and Rich @ Richmotorsports for all their help. Have the needles clip 2, can bored, reeds notched, and one layer gasket removed. The engine is still stong, but will get a new top end this summer. Love the simmon's up front I put on last year.
The clutch is stock. There are some very small spider cracks showing on the back of the secondary. The sled is geared 23/40 and with the stock drivers had a ratio of 1.74 and calculated top speed of 108 mph. With the 8 tooth drivers the ratio is 1.97 and top speed reduced to 94. I am fine with the top speed. I only use lakes and groomed trails to "get off the trails' if you know what I mean. I havent had a chance yet to ride it, but was wondering what some of you thought about the ratio and if my clutch is going to need a different helix and a little tuning. Thanks alot.
ps I weigh 150lbs wet!!
The clutch is stock. There are some very small spider cracks showing on the back of the secondary. The sled is geared 23/40 and with the stock drivers had a ratio of 1.74 and calculated top speed of 108 mph. With the 8 tooth drivers the ratio is 1.97 and top speed reduced to 94. I am fine with the top speed. I only use lakes and groomed trails to "get off the trails' if you know what I mean. I havent had a chance yet to ride it, but was wondering what some of you thought about the ratio and if my clutch is going to need a different helix and a little tuning. Thanks alot.

ps I weigh 150lbs wet!!
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