Re: Extra caliper anyone?

Posted by mitchberry on Sep 17, 2010; 3:28pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Extra-caliper-anyone-tp1484889p1517234.html

smaller sprocket drops the rpm overall but gives it less take off torque and in theory ups top speed - however, if it's too low, you can only get so much top speed out of it before the motor has to work harder to push the bike forward and you basically flat line... if it's too small, you lose torque and top speed..  You also have to account for your weight and the weight of the bike as well as the power output of the bike, not to mention rear wheel and tire size..  also, if it is too small given those parameters, you will use your clutch up a lot quicker... you have to feather the clutch more and have to rev it higher to get the bike rolling from a stop.  of course that's if you choose an overly small sprocket.. going a few teeth down won't be a big deal..   if you go a few teeth down, it will lower your rpm at highway speed.. it will also improve gas mileage too up to a point... at some point if you go to small it will hurt gas mileage because the motor has to work harder at highway speed...  lets say the bike was geared OEM to get best gas mileage at 65 and you drop a few teeth.. you're gearing it to get better gas mileage at .. i dunno.. let's say 75 for the sake of arguement... and most people don't cruise at 75..   if you're keeping it at inner city speeds all the time, then i dont know if it would really matter either way for keeping the rpm's low...  just shift earlier. not sure it will make enough of a difference though i could be wrong... it all depends upon the teeth.. i think re-run can chime in a little better about this stuff.

i'm not good with ratios personally, but i'm fairly sure the sprockets i'm getting are higher torque than the stock ones judging by what re-run posted in one of the threads i had..  with that said, i ended up with an extra tooth over his suggestion because that's all i could find in a 530 conversion that was available to order.. and i think my sprockets assume that i'm using the 17" tire on back - which i'm not, so i don't know what it will put me at...

 i think i'm getting a 17 / 49 if i remember maybe 48.