I just put a 14 tooth front on my 95 900ss.. stock 37 tooth rear. I like the change, but now I have chain rubbing issues at the front of the swingarm. I have decided to go bigger in the rear and back to the 15 tooth front.
I made an excel spreadsheet to see the % increase in gear ratio so I could then calculate the RPM change based on the stock 15/37 combo at 4000 rpm
So based on the numbers.. i'm thinking about the 41 or 42 tooth rear. I rarely get the bike above 80 or 90 and see alot of stop and go in town.
Will my gears be too close?
FRONT....REAR.....RATIO....% INCREAS.....RPM CHANGE
15......37.........2.47.........0................4000
14.........37.........2.64.........7.14............4286
14.........39.........2.79.........12.93..........4517
15.........39.........2.60.........5.41............4216
15.........41.........2.73.........10.81..........4432
14.........41.........2.93.........18.73..........4749
15.........42.........2.80.........13.51..........4541
14.........42.........3.00.........21.62..........4865
15.........44.........2.93.........18.92..........4757
14.........44.........3.14.........27.41..........5097
15.........48.........3.20.........29.73..........5189
14.........48.........3.43.........39.00..........5560
I made an excel spreadsheet to see the % increase in gear ratio so I could then calculate the RPM change based on the stock 15/37 combo at 4000 rpm
So based on the numbers.. i'm thinking about the 41 or 42 tooth rear. I rarely get the bike above 80 or 90 and see alot of stop and go in town.
Will my gears be too close?
FRONT....REAR.....RATIO....% INCREAS.....RPM CHANGE
15......37.........2.47.........0................4000
14.........37.........2.64.........7.14............4286
14.........39.........2.79.........12.93..........4517
15.........39.........2.60.........5.41............4216
15.........41.........2.73.........10.81..........4432
14.........41.........2.93.........18.73..........4749
15.........42.........2.80.........13.51..........4541
14.........42.........3.00.........21.62..........4865
15.........44.........2.93.........18.92..........4757
14.........44.........3.14.........27.41..........5097
15.........48.........3.20.........29.73..........5189
14.........48.........3.43.........39.00..........5560