TTHJames Posted June 23, 2009 Share Posted June 23, 2009 Hi, the chain and sprockets need replacing on my SR125 and I was thinking of changing the gear ratios. I ride at full throttle a lot on main roads so I though maxing the top speed with the sprockets I could find easily would be a good idea. I can get a -1 rear and a +1 or +2 front. I spoke to my Dad about this and he said if I make the front bigger I will have problems, I think he was mainly referring to the space inside the sprocket case. But I've had a look and there's plenty of room for just 2 more teeth in my opinion. Has anyone else done this? Do you think I will have any problems? Any comments would be appreciated. Cheers, James. Link to comment Share on other sites More sharing options...
TylerP Posted June 24, 2009 Share Posted June 24, 2009 Only that the bike will accelerate slower. Link to comment Share on other sites More sharing options...
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