Sprocket vs pulley ratio or 6 speed?
#1
Sprocket vs pulley ratio or 6 speed?
OK guys, I need some opinions here, but some numbers first:
-FXR shovel sprockets: 22T-48T (ratio 2.18)
-FXR EVO pulleys: 32T-70T (ratio 2.18)
I own 3 FXRS, 82 FXRS, 83 FXRT and 85 FXRT
Looking to make them long distance touring machines, asking here and there I made the following:
*1983 FXRT stock 80": 6 speed Revtech gears. Works great for cruising 80-85 mph on the interstate, still keep OEM-like 1-5 gear. The bad is that I have no power on 6 gear (Andrews AB cam), but it's not a huge deal since it's pretty much an autopilot gear for travelling
*1985 FXRT stock 80" (I believe): replaced 70T pulley with 65T pulley. Very common poor man's 6th great. Works great, 1-4 gears are like a 4 speed shovel, and 5th is "overdrive", cruising 80 mph below 3500 rpm. Lots of power in all gears, no complains. The pulleys' ratio 32T-65T is 2.03
*1982 FXRS (rebuilt fresh 80", Vthunder SHV-4010): I was suggested the combo 22T-46T (ratio 2.09) to get closer to a ratio of 2; that should work just like the EVO 65T pulley. Well... not really... I hit 75mph at 3500rpm.
My question is what to do with the 82: I don't mind the 6 speed, but its about $600. Sprockets are cheap, but I don't know pros and cons on going smaller/bigger at the tranny or wheel
My options for combos are:
22T-48T (ratio 2.18) OEM
22T-46T (ratio 2.09) current
23T-48T (ratio 2.08)
23T-47T (ratio 2.04)
23T-46T (ratio 2)
Opinions?
Thanks
-FXR shovel sprockets: 22T-48T (ratio 2.18)
-FXR EVO pulleys: 32T-70T (ratio 2.18)
I own 3 FXRS, 82 FXRS, 83 FXRT and 85 FXRT
Looking to make them long distance touring machines, asking here and there I made the following:
*1983 FXRT stock 80": 6 speed Revtech gears. Works great for cruising 80-85 mph on the interstate, still keep OEM-like 1-5 gear. The bad is that I have no power on 6 gear (Andrews AB cam), but it's not a huge deal since it's pretty much an autopilot gear for travelling
*1985 FXRT stock 80" (I believe): replaced 70T pulley with 65T pulley. Very common poor man's 6th great. Works great, 1-4 gears are like a 4 speed shovel, and 5th is "overdrive", cruising 80 mph below 3500 rpm. Lots of power in all gears, no complains. The pulleys' ratio 32T-65T is 2.03
*1982 FXRS (rebuilt fresh 80", Vthunder SHV-4010): I was suggested the combo 22T-46T (ratio 2.09) to get closer to a ratio of 2; that should work just like the EVO 65T pulley. Well... not really... I hit 75mph at 3500rpm.
My question is what to do with the 82: I don't mind the 6 speed, but its about $600. Sprockets are cheap, but I don't know pros and cons on going smaller/bigger at the tranny or wheel
My options for combos are:
22T-48T (ratio 2.18) OEM
22T-46T (ratio 2.09) current
23T-48T (ratio 2.08)
23T-47T (ratio 2.04)
23T-46T (ratio 2)
Opinions?
Thanks
#3
#4
#5
Just found an online overall ratio calculator so I'd try that:
Shovel OEM FXR 3.36
FXR EVO OEM 3.37
FXR shovel 46T 3.22
FXR EVO 65T 3.13
#6
My FXRT is a sport touring bike from the factory, saddlebags, fairing and tourpack
#7
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