Topic: Where can I find a 530 16-tooth front sprocket?

[Tugboat]

I think JT Sprockets makes one but I can't seem to find one anywhere. Anybody know where I can source these from?

[lucky]

Go to http://www.yamatoyamotorsports.com/

Call if you need to, and they can get you all set up for front and rear sprockets for your Honda CB750.

[RFogelsong]

http://www.z1enterprises.com/SearchResult.aspx?All=True&KeyWords=16

[Tugboat]

None of those from Z1 are correct. Yamatoya doesn't have one listed but I'll call anyway. Anyone else?

[RFogelsong]

What bike is this for?  Those fit my 550k1

[Tugboat]

My 750.

[Tugboat]

Bump.. anyone?

[Duanob]

http://www.jtsprockets.com/catalogue/sprocket/JTF288-16

Here is what I found. JTF288 is the fitment and .16 is the number of teeth. The 16 is a little hard to find why not go for a 17T?

[lucky]

You are not going to get a 16T sprocket.

The 1978 CB750's had the internal 4th and 5th transmission ratios were higher.

You can get 15T,17T,19T   ....starting to see a pattern? IT is because of the number of teeth on the rear sprocket.

Cycle-X sells a 19 tooth. It sure must be close to touching the engine case all the time. You would have to watch the adjustment of the chain like a hawk.

[lucky]

http://www.jtsprockets.com/catalogue/sprocket/JTF288-16

Here is what I found. JTF288 is the fitment and .16 is the number of teeth. The 16 is a little hard to find why not go for a 17T?

17 would be very low. Stunt bike low?

[Tugboat]

Running a 10mm offset rear sprocket from CycleX that only comes in 46-teeth, so 17/46 (2.71) was the closest ratio I could get to the stock 15/41 (2.73)

[Duanob]

Running a 10mm offset rear sprocket from CycleX that only comes in 46-teeth, so 17/46 (2.71) was the closest ratio I could get to the stock 15/41 (2.73)

Sounds like a 17T would be the ticket over a 16? 16/46 = 2.875 might be a little boggier compared to stock (2.73)

[Tugboat]

Oh.. do I have it backwards? I want less boggy! So 19?

[Duanob]

Oh.. do I have it backwards? I want less boggy! So 19?

oops sorry! I might be confused here, math isn't my strong suit  . I had to redo the ratio difference on my bike again and found my mistake. The smaller the ratio number the boggier your performance. But I would think you would want to stay as close to stock ratio number that you can since the Honda engineers designed the bike that way.

Here is what I did:

Went from stock 17T front, 37T rear (2.176)

to: 17T front 36T rear (2.118) It's not much of a change but I notice about a 400 rpm drop or a 4MPH rise at Hiway speeds roughly 6000 rpms. Any more and I am sure I would notice a more sluggish take off around town. going too much the other way and at hiway speeds you will always be searching for that higher non-existant gear. And your mileage will drop.

[Jerry Rxman Griffin aka MuthaF'er]

Smaller front and/or larger rear = quicker acceleration. I'd be careful going with anything smaller than the 17 front that was stock on the early F's. Chain bind can = chain break. "Cases-in-point" would be the early 750's that snapped chains and tore the #$%* outta expensive cases. They changed the sprockets after all those expensive warranty claims. Generally 1 tooth on the front = 3 on the back so going down 1 on the front is approx = to going up 3 on the back as far as acceleration. Your back is DOWN 2 to 46 so that's better for less rpm at highway speeds or it's about like a 17 and 2/3 tooth front sprocket. I see why you'd like to find a 16 to offset that but I'd be careful with a 16!   

[Roach Carver]

You are not going to get a 16T sprocket.

The 69s came with a 16 tooth sprocket I bet they are still out there. Smaller front or larger rear wil have less top speed but more bottom end.