Kawasaki Motorcycle Forums banner

Status
Not open for further replies.
1 - 12 of 12 Posts

·
Registered
Joined
·
501 Posts
Discussion Starter #1
I just got a 42 Renthal and it seems good quality. I paid $50 for it. I rode the bike for an hour on the freeway and felt really good to me. It is not, by any means, a wheelie machine. The front does come up easier in case u are interested and there are no cops around;)

"I love your butt, cause it is just the right size to loose my boot all up in it"
 

·
Registered
Joined
·
1,276 Posts
Ok...I don't want to loose too much top-end (not that I use it) or make the thing a wheelie machine. Basically, I'd like to get a tad more zip, but I don't want to make the thing unbearable to ride on the highway. So I figured I'd maybe go to a 41 (+1) sprocket on the rear. Shold be less severe as a -1 in the front.

#1 - For those that have messed with the soprockets (I haven't yet), do you think a 41 will be good for what I described?

#2 - should I go aluminum or steel? I'm thinking steel, aluminum way wear too much, and I'm not looking for somethign I need to replace periodically. But I'm not sure...if I can drop a couple of pounds why not - but that's not the goal here really. Most of the reading I did that said the aluminums were too weak was specifically referring to dirt bikes.

#3 - I haven't started to price any yet really, but what about the different brands? Who would you choose between Renthal, SprocketSpecialists and Votrex (I think these were all alluminum).
Then for steel I've seen these...JT-Pro Series and Sunstar. The steels seem cheaper too. I guess I'm basically wondering one one brand is junk and/or one is clearly a better product.

#4 - Odometer, what am I looking at basically ~+2.5-3% (speedo too)? I came up with 2.36 using Rob's calculations if I did them right LOL. And I'm guessing -4mhp top end based on swjohnsey's comments...not that I've hit the limiter in 6th. Thanks!
 

·
Registered
Joined
·
284 Posts
Going down to 14 in front really isn't as severe as you might think. I really like it, even on the freeway (except maybe when cruising at 80+, at which point I start wishing for 7th gear). The front end has only come up for me under extreme acceleration in first, sometimes second, but not much, and in a smooth and predictable manner.

That said, I don't like the extra chain punishment from that tiny front sprocket, and wouldn't want to make the bike any less rideable on the freeway. So, I figure when my chain wears out I'll go 15/42, 520, steel.

----------------------
Dave Lee
Red '02
Open Throttle Sport Riders
 

·
Registered
Joined
·
1,606 Posts
If you go 520 I don't think steel is an option. I have not found anyone that makes a steel 520 rear sprocket. The best you can do is a hard anodized aluminum one.
 

·
Registered
Joined
·
501 Posts
Discussion Starter #6
I went with aluminum. I will be replacing the chain in june-july and going to a 520 setup running 15/42.

"I love your butt, cause it is just the right size to loose my boot all up in it"
 

·
Registered
Joined
·
1,276 Posts
Oops...you know, it was late when I poseted that BUT... I think I wanted to say a 42, not a 41 rear... So +2, not +1. So my calculations are off for sure. But does that change much of anythign else?
 

·
Registered
Joined
·
1,471 Posts
Grunt_99,

I suggest a 42t rear sprocket for your purpose. I feel that a 14t front sprocket revs out too quickly in town and too highly out of town, and that a 41t rear sprocket is not enough of a perceptible difference.

I would get an aluminum sprocket. You may notice a bit nimbler handling as a result, and if you properly align the rear wheel, the sprocket will not wear too quickly.

I like AFAM sprockets. On the road, I like a DID 520ERV2 chain on them, a 15t steel front and a 42t aluminum rear. Check them out at afamusa.com.

If you go up two in back, your speedo will read 5% higher than stock. If you go up only one in back, it will read 2.5% higher.

You may also want to check out this thread.
 

·
Premium Member
Joined
·
2,586 Posts
I'm running 42 in the rear.....Renthal(sp)....lazy to check sp.
Or Sprocket Specialists.....Aluminium(sp)...long day...
520 set up......

I have the option to go one down in the front(track) or one up in the front (long ass trip to On. or Fla.).Seems to be a nice combination to work with.

Works for me.

Jason

Everyone has their own thing.....
 

·
Registered
Joined
·
81 Posts
I just did change sprockets and chain. I use RK 520 Gold chain and AFAM 14 front/40 rear sprockets. Let me tell you, the front is a lot easier to come up. Did an unintetional wheelie couple days ago on when I was accelerating hard on 1st gear.
I second what dav said, when I do 85+ on highway, I wish I had a 7th gear. The engine sounds like screaming all the time.
But I'm pretty much happy of what I did though. I don't care about losing a little bit of top speed. I'd never hit top speed anyway.
 
1 - 12 of 12 Posts
Status
Not open for further replies.
Top