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Post by thorgrimm on Sept 26, 2014 20:28:41 GMT
Guys Gota rf900 swinger/wheel on the rear of bike with I think 160 rear tyre chain is ek 630 with 15t front sprocket and 40 tooth rear sprocket. when sitting on bike no contact with swinger want to keep it like this if poss. rebuilding bst36ss carbs with ru2922 dual pods. just waiting on parts I know standard set up is 15/42 whats the best sprocket set up with these mods above for grunt/acceleration. realise compromised cause of pods etc. whats the set up ive got gona do or not do ? 14/42 be nay good or possible to leave rear sprocket and just change front ? cheers for your help
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Post by jonboy on Sept 29, 2014 6:50:31 GMT
You would be better off increasing the size of rear sprox rather than reducing your front. Smaller fronts give the chain a harder time as chain has to turn tighter. www.gearingcommander.com/Try the above link with different combinations and see what you get..... Jonboy
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Post by thorgrimm on Sept 29, 2014 12:04:34 GMT
what size of rear sprocket would be good mate got 15/40 at the mo.
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Post by jonboy on Sept 30, 2014 6:44:53 GMT
I running a 15/45 at the mo, but am using 530chain. Top speed not amazing but this combo works for turning the rpm into blinding acceleration and also seems to make use of the torque quite well too.
Jonboy
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Post by thorgrimm on Oct 1, 2014 18:14:48 GMT
hi mate cheers for that. not sure if the 530 would work for me/0ff set sprocket likely. the rf900 swinger sits quite high at the pivot. don't want to be slicing it up. gona get it all measured up as its geared for top end with 630 chain want it to fly. gota stage 3 dynojet to fit to bst36 carbs, just waiting on new emulsion tubes. got the dual pods too. ill keep your combo in mind. want max torque not top end. did you have to take out links/ will my existing front work with 530 chain etc or do you have to change out the lot for 530 conversion
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Post by jonboy on Oct 2, 2014 11:22:37 GMT
Cant use 630 chain on 530 sprockets or other way round. Lot of people use 530 conversion as it gives better chain clearance. My set up gives crap top end (about 130mph) but gives mental acceleration...... Jonboy
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Post by thorgrimm on Oct 2, 2014 13:44:02 GMT
ok jonboy thanks mate. thats what i'm after.
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