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RT 225 gearing

Posted: Tue Oct 30, 2018 1:11 pm
by Fux
Hi fella`s

Building a scoot for my son and I`m going to use a RT225, no reed, BGM Clubman, 30 delly.

I have a GP 200 box, just wondering what gearing to go for?

Re: RT 225 gearing

Posted: Tue Oct 30, 2018 5:13 pm
by garry inglis
standard will be fine 5.2 or 47x 18

Re: RT 225 gearing

Posted: Tue Oct 30, 2018 10:32 pm
by Fux
Hmm... BGM reccomend 4.8.

Re: RT 225 gearing

Posted: Tue Oct 30, 2018 11:21 pm
by YAMLAM
gp200 with 19 x 46 gives 4.84, and if it wont pull it swap sprockets to 18x 47 (5.22)

Re: RT 225 gearing

Posted: Wed Oct 31, 2018 6:26 am
by Scooterdude
I guess a big factor in this is your weight, I mean I’m 14stone and run an RT235 with full mb touring/torque tune on an li 150 box at 4:4 overall and it’s spot on and will cruise easily at 70-75 on an nk road pipe, however if your 22-25 stone things are going to be very different.

However if your running the Indian 200 box there is less of a jump between 3rd and 4th than my 150 box plus the fact you run a clubman so I would imagine 4:8 wouldn’t be far out.

Re: RT 225 gearing

Posted: Wed Oct 31, 2018 6:49 am
by Fux
4.8 sounds pretty spot on because my son is a featherweight but over here the speed limit is 80kmh and we mostly ride really tight, super hilly roads so that's my dilemma.

I think torque is key here so maybe 5.2 will make it a little more fun?

Re: RT 225 gearing

Posted: Wed Oct 31, 2018 12:40 pm
by Spaniard
I have the same set up , only the 28 mm delly , with a jet 200 gearbox , 4.82 gear ratio
great stuff !

Re: RT 225 gearing

Posted: Wed Oct 31, 2018 8:34 pm
by Meds1
I’m running 4.95 on an 195 and it drags my 15 stone around up hill and down dale no problem.
5.22 is probably a bit low

Re: RT 225 gearing

Posted: Thu Nov 01, 2018 12:30 pm
by Fux
Ok.. back to square one. I`ll try 4.8 :lol:

Re: RT 225 gearing

Posted: Thu Nov 01, 2018 10:23 pm
by Doom Patrol
I run mine on a TV200 gearbox. Admittedly with a 47 tooth crownwheel, but it goes well and is certainly the fastest scooter I've had.