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I installed the BMP Stage 1 (pipe, y-pipe, tune, clutching) when my 2016 Pro-X 800 was new and it has run flawless for 2500 miles. Substantially quicker than my 2017 XCR 800 and a lot more fun to ride. I figured it is time for a top end, so I picked up Stage 3 (adding the billet head...

Just following up. Do you still have your Pro X and what did you end up with for clutching on your BMP Stage 3? I just upgraded to Stage 3 and the Durability Kit. I have their original Stage 3 clutch instructions from 2016 (Orange, 76.2g, 3/4/3/3 w/1 extra weight in #3 or #4, 50/44F ER...

The Stage 1 kit has pipe, BullyDog controller, and clutch kit (helix, weights, and both springs)

Want Performance for your Pro X? Buy a Stage 1 from Bikeman!!! Pipe, Bully Dog and Clutch Kit (except I changed the primary from a 160 to 120 for a less agressive engagement); bolted it on and my 16 Pro X, 1.75" lug runs like a whole new animal. Trail performance greatly improved...

UPDATE - Put on 200 more miles in the UP last weekend and got a pretty good idea on how the Stage 1 performs... Put the SPANK DOWN on my buddy's Renegade 800 E-tec. From a 10-15 mph roll on an unplowed seasonal road, I immediately pulled away and had 5-7 lengths by the time we hit 80 mph.

Put 150 miles on the BMP Stage 1. Pretty impressive! I don't have a side-by-side comparison, but seat of the pants feels like some strong midrange gains.

You called it! Cleaned the sheaves, put on a new belt, and PRESTO! It cleared up fine, but was engaging at 4900 rpm. I put on the 120/320 and it dropped engagement to 4200 rpm. We only got 4" of snow in Detroit, so I could only cruise across the yard, but it feels like it's working the way it...

My guess is that it was holding out ok with all the stock parts, but the BMP clutch kit was too agressive and it started slipping

I think I found the culprit... My belt has a metallic blue color on the sides. It must have gotten smoked and was slipping. 1000 miles on a stock Pro X seems a little quick to burn up a belt. Especially when they cost $200

The odd thing is that BMP has a 165# primary spring and SLP uses a 160#. Riding this thing slow is a huge PITA!

Just got my BMP Stage 1 installed (pipe, bullydog, clutch kit). Ran great, but as soon as I installed all the parts, there was an immediate issue when trying to load it back onto the trailer... The clutch would engage and the sled would lunge forward. There was no way to slowly get it to...