Modern Buddy

hello all new member here. I have a 2012 rh50 with about 600 miles on it. Ive been experimenting with rollers. so far I have 3 stock roller weights ( not sure of the weight ) and three 6 gram weights. the acceleration is better, the " up shift" / flat spot isnt as noticeable during aceleration and the RPM's stay higher throughout acceleration. I have also added blue 1000 rpm clutch springs. I ordered a blue 1000 rpm torque spring but it was a tight fit over the spindle and did not allow for the guide plate to be used so I stuck with the stock torque spring, I assumed they were all the same size. I'm wanting it to " down shift " better ( up hills and when I come out of turns and corners ) and get a little more top end at the same time. It is derestricted and gets me ( 215 lbs ) up to 42 ( GPS) on the flats . I know that's not too shabby but I want more : )


My question... If I go to yellow 1500 clutch and 1500 torque spring ( what model/size do I order this time ?) and go a little heavier up front ( maybe 8-9 grams ) will I have good acceleration, better hill climbing abilities and increased top end? or is this wish full thinking? I'm wanting to keep my air box, jet and pipe stock if possible, if not I may consider changing / modding these as well.
Any experiences with such tunes would be greatly appriciated, thanks !

Welcome to the fold and what seems to be the hardest scoot to mod. I've been doing extensive research for the past 3 years and still have not got all the answers I need but will try to impart what I have got.

Stock rollers are 7.5, with the with stock and 6's you have your average roller weight is 6.75. You could lose the stock's and put all 6's or 6.5's in for better take off acceleration (I weigh 216 so have some experience with this). I tried 9's but it was so sluggish at take off it just could not get out of its own way.

Your probably in the ballpark with the 1500 spring, but this is one of the things that I cannot find a definite answer to the size, I could just take out the spring and measure but with work and sheer laziness on my part I haven't bothered as of yet. Since you had the stock spring out measure and find a replacement based on that, I am pretty sure the length is 107mm, but don't know the diameter (it may be 48 or 49mm but still a question mark).
Stick with the 1000 pillow springs, this should help with clutch engagement for what your looking for. The torque spring (1500) will help with the hills.
As for makes of said parts NCY, Pinasco, Malossi, and even Prima all make these but the general consensus seems to lean towards NCY, although I have seen recent threads as to NCY's quality dropping on certain things.
Like I stated earlier its a crap shoot in the mod department but if you had all the answers handed to you it wouldn't be as much fun when you are a DIY'er.

Thanks for the quick reply and the good info on the rollers. It looks like I'll be taking out my torque spring to measure it this weekend. I'll let everyone know what the specs are and how it works once I get the replacement in.Thanks again : )