hi im new to the forum im just doing a 172 nrg up as a project will be posting pics in the project page later just wanted to no i wanna tune the bike up just for round twn so dnt wanna put a gear up kit on it as i will lose take off and i love the 172 nrg take off its mental but if i dnt put the gear up on it will it make anythin go wrong on the bike eg gearing as it not got that little bit of gearing to go upto will it over rev and brake is wat im getting at lolol any info thanks will be a good help and other info will be a help
marginal gains, if you want the power back your gonna loose to the gear up gimmi a pm as i can get a couple horses out of a 172 without loosing any life/reliability..
see i dont understand that because my gilera runner with a gear up kit reved alot higher then it did with 125 gears? example.... with 125 gears my biked revved at 5000rpm at 30mph and 6000rpm at 45mph and then with the gear up kit at 5000rpm my bike didnt even pull off.... then at 6000rpm it did 30mph... so basicly at lower speed my bike reved alot more... it was only untill 7500rpm is when the gear up made a difference
thats down to rollers.. revs out the window, putting a gear up in a bike is swapping 30% of your accell for 30% more top end.
ohhhh makes sence now mate cause i had 15.5grams in before then with the gear up kit had 12grams haha
