AndyCatts

Hey all,

Since I use my CBR for commuting/city riding a lot, I wanted it to be a bit smoother and more usable in 1st/2nd gear (for speeds around 25-35mph.) I just ordered a front sprocket (going from 15 tooth OEM to 16 tooth) and wondered how hard it is to install? I've got a clymer's manual...but I also don't want to screw anything up. What kinda job am I looking at?

wordsareforplay

You sir, are the only person I've ever heard of going UP a tooth in the front.

Regardless, if you're replacing 1, rule of thumb says replace both + chain due to wear and tear.

If you do just the front sprock, you may have a slight bitch of a time getting the chain wrapped back onto the front sprock, depending on the amount of extra room you have when you pull the covers off.

(Above assumes you have the tools and mechanical aptitude to follow instructions)

Mithras

It's just as easy as putting the bike on stands, taking the front sprocket cover off, taking the rear wheel off, taking the chain off, then taking the front sprocket off. Repeat in reverse, check your rear wheel alignment, and have a beer.

james1300

If all ya want to do is change the front only, you need to use a center stand or track stand. That keeps the bike up right and stable.
Loosen the rear wheel and adjusters.
Slide the rear wheel Forward, your gonna get alot of chain slack, you will want this.
IF you cant get enough slack, then the rear wheel MUST come off.
Following the instructions in your Clymer or Honda repair manual, loosen the Front sprocket retension system.
With a bunch of chain slack, you can work the chain off the front sprocket.
Then, off the counter shaft.
Install in reverse order.
You will be rewarded with better fuel economey, and a longer lasting engine (lower RPM's)
Guy's with the 650 Vstroms LOVE this mod!

AndyCatts

Thanks for the tips. Yeah, I know most people try to get more torque out of their engines and whatnot, but my bike has plenty for me, and it will be handy to not have my bike rattling out beneath me at slow speeds. 5K rpms in 2nd gear feels like 8K in 4th. But 5K rpms in 2nd gear is around 30mph, one of my most common speeds.

Do you need a center stand? I only have a rear stand... shoot. And I have no experience taking a tire off/balancing it... Anyone want to help? There's a 6-pack of a good beer for you (your choice.) :D

wordsareforplay

No you don't need a center stand, just one to get the back end off the ground. Your rear stand will work just fine.

Taking a tire off isn't difficult, I'm sure someone in your area will be more than happy to help you out, or at least provide somewhat detailed instructions...or you can read the Clymer's.

AndyCatts

I know it's "rule of thumb" to replace everything all at once, but I don't have the extra $200 for a new chain & rear sprocket. Is this a bad idea? Should I save up a bit and replace them all at once?

wordsareforplay

Depends on the wear and tear on your current setup.

How many miles on the chain/rear sprock?

When you take it apart, see if the sprocket is worn down and/or grooved, or if the chain shows signs of fitting to the teeth.