Monster 1100 gearing

gary tompkins · 16-04-2010, 10:01 PM

I would opt for +2 or +3 on the back, as the smaller 14T front can put extra stress on chain due to smaller radius. Going -1 tooth on front is equivalent to +3 on the back, so you might find it a bit buzzy on M-ways. Dropping a tooth on the front's the easy and cheaper option, as saves fitting longer chain needed for bigger rear sprocket.

I dropped final drive ratio on trike by other methods. The 205/40/17 tyres I fitted have 50mm smaller overal diameter than stock 170/60/17 rear wheel. Even using stock 15/39 gearing it had same effect as +2 teeth on rear sprocket, which worked out spot on for me. The trike now accelerates better than a solo 900ie, despite an extra 80kg dead weight. It also easily cruises at 75-85mph fully loaded, and still returns 50+ mpg. It pulls an extra 700 rpm in top gear, and will hit 125mph at redline which is pretty rapid for a trike.

16-04-2010, 10:01 PM	#1
gary tompkins 1/2 man - 1/2 pogo-stick Join Date: Aug 2002 Location: Dartford, Kent Bike: M900ie Posts: 7,241	I would opt for +2 or +3 on the back, as the smaller 14T front can put extra stress on chain due to smaller radius. Going -1 tooth on front is equivalent to +3 on the back, so you might find it a bit buzzy on M-ways. Dropping a tooth on the front's the easy and cheaper option, as saves fitting longer chain needed for bigger rear sprocket. I dropped final drive ratio on trike by other methods. The 205/40/17 tyres I fitted have 50mm smaller overal diameter than stock 170/60/17 rear wheel. Even using stock 15/39 gearing it had same effect as +2 teeth on rear sprocket, which worked out spot on for me. The trike now accelerates better than a solo 900ie, despite an extra 80kg dead weight. It also easily cruises at 75-85mph fully loaded, and still returns 50+ mpg. It pulls an extra 700 rpm in top gear, and will hit 125mph at redline which is pretty rapid for a trike. __________________ GT Fully paid up member of the S.A.S. (Scottoiler Appreciation Society) 27,000 miles on original chain - and still going strong! Last edited by gary tompkins; 16-04-2010 at 10:05 PM..