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Author Topic: Pulley Changes and Belt Tooth Count  (Read 2764 times)

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ltank

  • 1K CVO Member
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    • LA

    • CVO1: 2000 FXR4 S&S V111, CustomS.S. 2-1 exhaust, Primo-Rivera OD 6 speed, 49mm Custom Front End Ohlins 30mm Fork cartridges , Hyperpro Shocks, Barnett Scorpian Clutch
    • CVO2: 1983 88" Shovelhead Won the World of Wheels 1985 Sept 85 Issue of Hot Bike Mag
    • CVO3: 1989 FXRS, 1990 Custom 100" Shovelhead/ EVO
Pulley Changes and Belt Tooth Count
« on: May 03, 2012, 06:12:44 PM »

Hi Guys,
  I called S&S about getting the correct belt tooth count when changing pulleys. He told me that he needed the measurement from the center of tranny shaft to the center of rear axle along with the tooth count of each pulley I told him I was going from 32 to 30 on tranny and from 65 to 70 on the rear wheel pulley for a difference of 3 tooth to be added to the stock 133 for a 136 count. He said it is not as simpe as a tooth count of the difference between the pulleys!!!
Does any one have the center of tranny shaft to center of rear wheel axle? I contacted Andrew but they have not  responded yet.
Thanks,
Ltank
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ltank

  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 1214
    • LA

    • CVO1: 2000 FXR4 S&S V111, CustomS.S. 2-1 exhaust, Primo-Rivera OD 6 speed, 49mm Custom Front End Ohlins 30mm Fork cartridges , Hyperpro Shocks, Barnett Scorpian Clutch
    • CVO2: 1983 88" Shovelhead Won the World of Wheels 1985 Sept 85 Issue of Hot Bike Mag
    • CVO3: 1989 FXRS, 1990 Custom 100" Shovelhead/ EVO
Re: Pulley Changes and Belt Tooth Count
« Reply #1 on: May 06, 2012, 01:52:27 PM »

I put bike in stand, removed the derby over to expose the adjustment screw and two reading from center of screw to center od rear axle. 23 1/4" when adjusted and 23" with axle moved all the way forward. This info along with the pulley tooth sizes 30 / 70, I can get this info to S&S for one of their High Strength Belts.
 I am sure it will be a 136 tooth as our friend FXR2evo99 has stated in his in depth report in his gearing project that has be very helpfull. With two new pulleys and a new belt that deceleration squeak fill finally be gone! An added bonus!
Thanks,
Ltank
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