Rear steel sprocket of less than 43?

Having a difficult time locating a source which actually has one.

thanks!

 

Not sure why you would want to, but if you call someone at Sprocket Center they could get any of the manufacturers to make one. It usually won't cost any more than what it would otherwise, but it may take an extra week or two to get it. They would simply stamp a solid sprocket of any tooth count with the proper lug pattern. The reason you're having trouble locating one is due to the uncommon nature of the request.

 

If you had a nice long 5-10 mile stretch of road one might get a VFR wound out in the 175+ range with +1 on the front and -2 on the rear. But, Smart Cars might beat such a bike off the line... lol, That's how I have my CR500 set up when racing desert.

 

Just to lower the rpms and potentially gain a little increase on the mpg. 18/40 sprockets have been ordered and this results in the new 5th gear being almost identical to the present 6th gear. New gearing will result in ~71 mph at 4200 rpms. Think of it as an overdrive gear I suppose.

 

Seems like a total neutering of acceleration in order to gain a few miles per at cruising speeds - but it's your machine.

 

Yeah true, but would have kept the Aerocharged ZX-11 for the need for speed.

A simple downshift and the VFR should go wooooooosh...

 

Just for kicks, I'd like to hear what kind of mileage you end up with when you're done. I'm betting you're going to need a shorther chain as well with the gearing change being so extreme.

 

Yeah, did a similar sprocket mod on a 250 Virago and used a 112 link chain in place of the stock 114. What is the stock link chain for a VFR? Will surely update on how this effects drivability and mpg effects.

 

110 links in stock form.

 

18/40 gearing is really tall. I have 16/46, you are about 29% taller. In this day of $4 gas it might make sense if you run highway speeds.

 

Engine is doing 4500 rpms at 70 mph-6th gear. Speedo is correct-calibrated using the GPS and the plug in calibrator module. Only thing I changed was the front sprocket..now 18T. Curious what rpm others are seeing at 70mph?

 

:biggrin: Really handy web site:
Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator
They have a preset for the stock vfr, and you can have 3 different gearing setups set up at the same time and flick back and forth to check your speeds. There is also a chain length calculator; not infallible, but gives you a likely starting point. One of my favorite bookmarks, the perfect tool for the job.

-VFRGeek

 

I went up two teeth on the rear sprocket because I didn't like how high first gear was for slow speed maneuvers. It runs 5200 at 70 if I recall and I can still get 47mpg if I'm gentle with my wrist.

 

Shortly after I got my '99 I went up 1 tooth on the countershaft sprocket and then changed it back after a year or so of riding. I never noticed an appreciable improvement in gas mileage and the need to downshift for simple vehicle passing was not worth the hassle. Also 1st gear required some real clutch slipping to get moving, especially up an incline. In fact I'm thinking of moving 1 tooth bigger on the rear sprocket at some point.

I have a 1 tooth larger countershaft sprocket if someone wants it. Just pay for shipping. No rubber damping ring though.

 

The rubber damping is only the OEM sprockets, and have never noticed any more chain noise when switching to an aftermarket sprocket without the rubber damping.

 

I noticed the counter shaft sprocket, chain noise the second I started rolling, after changing the rubberized stock sprocket.:crazy: I run -1, +2 for aggressive canyon riding, but it sucks on the freeway. 80mph indicated (no speedo healer) just before v tec, (6200 RPM). This set up is only good for canyons <60mph and for killing 600's off the line. ...oh yeah I almost forgot :vtr2:

 

I commute more than I get to run the canyons. I was thinking of doing the 17/43 combination myself. I would like more of your opinion on this as I am looking for better gas mileage, but I don't want a total slouch. All, what about a 17/44 combination. Has anyone tried it?