Author Topic: Aluminum Rear Sprocket (Read 3430 times)

Caymen · « **on:** March 12, 2010, 08:25:10 AM »

Why? What purpose is there for an aluminum sprocket?

I would think the aluminum wears down faster than a steel one would.

I want/need a new rear sprocket. Something isn't right about the one I have. It is egg shaped (slightly). I want something affordable (read: cheap), but good. My 1978 CB is a rider and not used on long trips. Just around town and some little scenic rides. Nothing major.

Getting ready for spring.

Tom

754 · « **Reply #1 on:** March 12, 2010, 08:55:39 AM »

Lighter weight for better handling.....1/3 the weight.

7075 is fairly tough, you may be surprised..of course you have to oil the chain....

HavocTurbo · « **Reply #2 on:** March 12, 2010, 04:00:10 PM »

You want steel or aluminum?

How many teeth?

I actually see less wear on the aluminum ones. By how much depends on rider of course but sometimes you see a really good one.

I can look up some prices for you.

bucky katt · « **Reply #3 on:** March 12, 2010, 04:02:11 PM »

i seem to have gotten just as many miles out of the aluminum sprocket i run now as i did the steel ones. as i see it, the less weight that has to be spun up to whatever speed youre going the faster you'll accelerate too, but handling is why i started using aluminum.

Caymen · « **Reply #4 on:** March 12, 2010, 04:45:28 PM »

I am running a stock front sprocket. The previous owner put a front sprocket with 1 less tooth and I did not like it, so I went back to stock. I am thinking of going with a sprocket with 1 less tooth. My bike is not for racing and I feel I would still get plenty of power even with that ratio.

Your thoughts?

You guys know MAY more than I do about these bikes, well...all bikes for that matter. I will also need a replacement chain.

As I said, I want it to be affordable too. I am not looking to spend hundreds of dollars on this.

Tom

bucky katt · « **Reply #5 on:** March 12, 2010, 04:52:49 PM »

i'm running a 17 front and a 46 rear on my k4 750 right now

Alan F. · « **Reply #6 on:** March 12, 2010, 04:58:10 PM »

Aluminum sprockets for most any bike are made by http://www.jtsprockets.com/

Caymen · « **Reply #7 on:** March 12, 2010, 05:57:44 PM »

Where do you buy those sprockets in the USA?

Tom

Alan F. · « **Reply #8 on:** March 12, 2010, 07:29:55 PM »

www.motorcycle-superstore.com and www.bikebandit.com both carry JT's but I don't know if they have the alloy rears for sohc bikes.

HondaMan · « **Reply #9 on:** March 12, 2010, 07:38:35 PM »

What kind of mileage do you expect to get with those aluminum sprockets?

Caymen · « **Reply #10 on:** March 12, 2010, 08:19:23 PM »

Bike Bandit has steel sprockets priced about the same as ebay. Of course, with many parts from ebay, you get no name chinese crap. Now I am deciding what ratio I really want.

2.18, 2.12, 2.06, or 2.00

Any suggestions? This is for a '78 CB550K with a full windshield.

Tom

bucky katt · « **Reply #11 on:** March 12, 2010, 08:22:07 PM »

i got 9,000 plus out of the 48 tooth one and it still had plenty of life left when i changed to a 46 tooth rear

Steve_K · « **Reply #12 on:** March 13, 2010, 06:43:24 AM »

I put an aluminum sprocket on my 86 750 GIXXER and I have about 5000 miles on it and it still looks pretty good. I don't recall the manufacturer but the GIXXER does have more HP so with lube and the chain adjusted correctly you should have no issues.
Steve

Caymen · « **Reply #13 on:** March 13, 2010, 12:16:32 PM »

Any input on what ratio I should go with before I decide on my own?

Tom

paulages · « **Reply #14 on:** March 13, 2010, 01:20:17 PM »

sprocket specialists can make whatever you need. hard anodizing is a little extra, but worth having the weight savings of aluminum, in my opinion.

Caymen · « **Reply #15 on:** March 13, 2010, 01:28:33 PM »

I can buy 2 steel sprockets plus a chain for the cost of one aluminum sprocket from Sprocket Specialists.

There is no way a couple of pounds is going to make the bike "That much better".

My next decision is what ratio. Stock or 2.12? I was thinking of 2.06, but I think that may be too low.

Anyone have any input on this?

Tom

Bamboozler · « **Reply #16 on:** March 13, 2010, 02:20:11 PM »

I just ordered a new front and rear sprocket for my F model 750... Had I known how freakin heavy that JT steel rear sprocket (or stock for that matter) was I would have seriously looked into aluminum. Good boat anchor material!

(boat anchor i.e. heavy, not junk, thought I should clarify

I think the rule of loosing X lbs of unsprung weight (i.e. steel to AL sprocket) = loosing 2*X of sprung wight would apply.

754 · « **Reply #17 on:** March 13, 2010, 07:38:31 PM »

You probably get what you pay for..

Some guys deserve to run steel rears..

& then they look at you and wonder why that bike that looks like theirs, just whipped them....

Caymen · « **Reply #18 on:** March 13, 2010, 07:49:30 PM »

Still nobody can give me advise about what ratio to use? Seriously?

Yea, I got it. Aluminum will take a slow bike and make it a 9 second runner. It will handle like a true sport bike and leave them in the dust. I got it. All out of a 550CC SOHC engine. I got it.

I will take me chances with a good brand (JT Sprockets) and I know they are not custom made to run the 1/4 mile at 2 seconds. I know it will not handle like a race bike.

I want an OEM replacment sprocket made of good quality that will give me some type of improvement.

Anyone got some real input now?

Yes I know Aluminum is the way to go. Everyone knows if I take my $500.00 bike and put $300.00 worth of sprockets and chains on it, I will magically have a $30,000 bike that will be the envy of everyone.

Seriously, anyone able to reccommend a gear ratio they like. This is not a track bike. I will not be competing in any type of racing. I will be riding on the street and need to replace my sprockets and chains.

Tom

754 · « **Reply #19 on:** March 13, 2010, 08:20:09 PM »

Hey you asked what the purpose was..

We are NOT magicians here..
so what, now you want us to guess what your needs are..

Your choice of gearing depends on a few things, like riding style, passenger or not, touring gear equipped , geographic area you live in..etc..etc.etc..

Do you have a relative named Eldar, by chance...

BTW, how did you determine your rear sprocket was egg shaped..?

paulages · « **Reply #20 on:** March 13, 2010, 08:43:59 PM »

Quote from: Caymen on March 13, 2010, 07:49:30 PM

Still nobody can give me advise about what ratio to use? Seriously?

Yea, I got it. Aluminum will take a slow bike and make it a 9 second runner. It will handle like a true sport bike and leave them in the dust. I got it. All out of a 550CC SOHC engine. I got it.

I will take me chances with a good brand (JT Sprockets) and I know they are not custom made to run the 1/4 mile at 2 seconds. I know it will not handle like a race bike.

I want an OEM replacment sprocket made of good quality that will give me some type of improvement.

Anyone got some real input now?

Yes I know Aluminum is the way to go. Everyone knows if I take my $500.00 bike and put $300.00 worth of sprockets and chains on it, I will magically have a $30,000 bike that will be the envy of everyone.

Seriously, anyone able to reccommend a gear ratio they like. This is not a track bike. I will not be competing in any type of racing. I will be riding on the street and need to replace my sprockets and chains.

Tom

No reason to get snippy, man. you asked why one would use an aluminum sprocket instead of steel... it is the title of your thread after all. there's no need to be a dick when someone answers your question. No, that sprocket alone isn't going to make your bike fast, but it all adds up. I'll bet money my 550 will beat the living snot out of yours (and most cb750s), and I'm running an aluminum rear sprocket. Is that why? No, but it's all part of making a bike faster.

Start a gear ratio thread if you don't want people annoying you by answering the question you titled your thread by.

Caymen · « **Reply #21 on:** March 13, 2010, 09:30:57 PM »

The chain goes from tight to loose when I spin the rear wheel. I have not torn it apart to actually measure it though. For $25.00, I can have a new sprocket to eliminate any possible issues. I am replacing the rear wheel, bearings, tire, etc. While everything is apart, I might as well spend the few bucks and do it right.

As for making another topic, I see that as counter productive. I already decided that though I would like to have an aluminum sprocket, it just isn't worth it for my application.

Oh well. Guess I need to learn how things go on this website.

Tom

Caymen · « **Reply #22 on:** March 13, 2010, 09:37:42 PM »

Quote

I'll bet money my 550 will beat the living snot out of yours (and most cb750s), and I'm running an aluminum rear sprocket. Is that why? No, but it's all part of making a bike faster.

No doubt that it will. I did not buy my 550 thinking I was buying a fast bike. I got it because I wanted a bike to learn to ride and work on. I plan on buying a nicer bike when my circumstances change. Until then, I will ride my CB550, not because it is fast, not because it handles like a super bike, not because it looks great, but simply because I got it cheap.

Thanks for the help. I really do appreciate it.

Tom

paulages · « **Reply #23 on:** March 13, 2010, 09:45:35 PM »

Quote from: Caymen on March 13, 2010, 09:30:57 PM

Oh well. Guess I need to learn how things go on this website.

Tom

it's really friendly and helpful place, you just can't show up with 35 posts and get snippy with people trying to help you. hope you get your situation figured out.

NickC · « **Reply #24 on:** March 13, 2010, 09:50:01 PM »

Ask vague questions, get vague answers.

Act like a dick, get a dick answer.

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Author Topic: Aluminum Rear Sprocket (Read 3430 times)