Hello all, I'm picking up a friend's ZX10R race bike in about 3 weeks and because I am new to Kawasaki I have a few questions to get me started setting it up for me. It's a '16 with quite a few mods and I'd like to get some feedback on the direction to take it to prepare for the 2021 race season. I don't know all the details yet but here are some questions to get me going, thanks in advance! 1. Regarding geometry: As far as I know the bike has had the shock shimmed by 10mm but no other geometry changes. There was a post here giving numbers after a geometry measurement on a stock bike with MotoAmerica spec dunlops, the rake/trail was 25.3/115.5 - I assume this is approximately the starting point for most stock bikes. I understand that there is a good amount of variance rider to rider, but what are typically some target values for a ZX10R race bike? I would guess more like 105mm of trail would be more ideal, 115 seems lazy, but again I do not know these bikes at all. Are you guys typically using the steering angle adjusters at 23* or 23.5* positions? Offset I've read is 25mm stock, are you guys increasing this with the +4mm collars to 29mm? I've been looking around and haven't seen a lot about using these race kit parts. Not even sure if you can use the rake adjuster and offset collars together or if it's one or the other. With things like dropping the front, raising rear, and any other changes, does swingarm angle start becoming an issue and if so how far are you typically shifting the pivot? One of the racers in my series is known as "the" Kawi guy and puts out very fast times and also sets up other bikes that are around, he claims he can get the setup pretty spot on so I am assuming there are a few common changes to get these bikes in the right ballpark. Just looking for some details here so I can have some knowledge before talking details with him. 2. Regarding electronics: The bike has a Woolich set up but don't know anything more than that at this point. The same Kawi guy mentioned above says I really need to get a race ECU/harness to get it dialed. What does this afford that the Woolich does not? I assume there are certain parameters that are only adjustable with the race ECU but what are these and is it worth the cost of swapping if the bike already has the Woolich? 3. The bike has a TTX and GP fork cartridges which I understand is basically the old Ohlins 25 kit with different pistons and valving. I was told the stroke increases by 10mm and then someone said it's actually closer to 7mm, so two questions - which is it, and do you compensate geometry (assuming you want to keep that the same) by pushing the forks up through the triples by that amount? Not sure what the topout springs are like and if this has to be worked into it. On the topic of suspension, I am 178 lbs. in street clothes, what are similar guys typically running for spring rates? Not sure what the bike has now. 4. The bike has 3,500 miles, which has been track miles for the last 2 seasons. I am reading that these motors are solid but wonder at what point these are usually rebuilt. I will dyno when I get it and if the numbers are looking good I might assume it could make it through the whole season, is this reasonable given the mileage/usage? Anything to look out for in particular? Thanks for any feedback!