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What ratio are these?

Posted: Thu Mar 17, 2011 10:53 pm
by KingJeff801
http://cgi.ebay.com/ebaymotors/ws/eBayI ... MEWAX%3AIT

Seller didn't seem to really know, Will they fit an AF16?

Re: What ratio are these?

Posted: Fri Mar 18, 2011 3:34 am
by PureAloha
what was the tooth count on the ring and the pinion

Re: What ratio are these?

Posted: Fri Mar 18, 2011 4:36 am
by 808BMW
Assuming the seller's info is correct, yes they fit a AF16 motor, the final ratio would be around 9.2:1

Re: What ratio are these?

Posted: Fri Mar 18, 2011 9:26 am
by Wheelman-111
Greetings:

If you can do a little Math and you know your current primaries...

Integral Clutch Shaft Gear = "A"
Big Countershaft Gear (splined) = "B"
Integral Small Counter Gear = "C"
Axle Shaft Gear (pressed-on) = D

The Formula is: B/A x D/C.
42/12 x 40/15 = 9.33:1

Alternatively, you can look Here. The Thread is in Technical Documents and (Methinks...) WikiSpreedia.

Re: What ratio are these?

Posted: Fri Mar 18, 2011 11:08 am
by Trafficjamz
Wheelman-111 wrote:Greetings:

If you can do a little Math and you know your current primaries...

Integral Clutch Shaft Gear = "A"
Big Countershaft Gear (splined) = "B"
Integral Small Counter Gear = "C"
Axle Shaft Gear (pressed-on) = D

The Formula is: B/A x D/C.
42/12 x 40/15 = 9.33:1

Alternatively, you can look Here. The Thread is in Technical Documents and (Methinks...) WikiSpreedia.

Yeah but these are primary gears....not secondaries.

9.23:1 is the ratio if the tooth count is right, and you have stock secondaries.

Re: What ratio are these?

Posted: Fri Mar 18, 2011 11:46 am
by Wheelman-111
Greetings:

Good catch, Jamz! I didn't get a good look at the parts/package on my BB.

Re: What ratio are these?

Posted: Fri Mar 18, 2011 12:29 pm
by KingJeff801
Thanks for the input fellas! I wasn't quite sure the formula for primary gears, I took a gamble buying them and figured since they were Daytona they had to be worth something. These should work well on my stock bike!

Thanks, again

Re: What ratio are these?

Posted: Fri Mar 18, 2011 12:39 pm
by sanjuro
KingJeff801 wrote:Thanks for the input fellas! I wasn't qutie sure the formula for primary gears, I took a gamble buying them and figured since they were Daytona they had to be worth something. These should work well on my stock bike!

Thanks, again
Dude, you fuggin' SCORED!!!

Re: What ratio are these?

Posted: Fri Mar 18, 2011 12:42 pm
by KingJeff801
sanjuro wrote:
KingJeff801 wrote:Thanks for the input fellas! I wasn't qutie sure the formula for primary gears, I took a gamble buying them and figured since they were Daytona they had to be worth something. These should work well on my stock bike!

Thanks, again
Dude, you fuggin' SCORED!!!


Daytona parts are pretty rare these days , much less new ones! I didn't want to ask before the bidding eneded or these would have gone for a lot more :wink:

Re: What ratio are these?

Posted: Fri Mar 18, 2011 12:55 pm
by sanjuro
KingJeff801 wrote:
sanjuro wrote:
KingJeff801 wrote:Thanks for the input fellas! I wasn't qutie sure the formula for primary gears, I took a gamble buying them and figured since they were Daytona they had to be worth something. These should work well on my stock bike!

Thanks, again
Dude, you fuggin' SCORED!!!


Daytona parts are pretty rare these days , much less new ones! I didn't want to ask before the bidding eneded or these would have gone for a lot more :wink:
If you want to make some money on these, I'll give you $90.

Re: What ratio are these?

Posted: Fri Mar 18, 2011 12:58 pm
by Trafficjamz
The package says 10% up

10% up from 12.1:1 is 10.89:1

The only way to know for sure, is to count the teeth, when you get them.

Re: What ratio are these?

Posted: Fri Mar 18, 2011 1:04 pm
by KingJeff801
Trafficjamz wrote:The package says 10% up

10% up from 12.1:1 is 10.89:1

The only way to know for sure, is to count the teeth, when you get them.

I will give them a count when gears arrive, do the bikes in japan come stock with 12.1:1 gears?

Re: What ratio are these?

Posted: Fri Mar 18, 2011 1:08 pm
by KingJeff801
[/quote]Daytona parts are pretty rare these days , much less new ones! I didn't want to ask before the bidding eneded or these would have gone for a lot more :wink:[/quote]
If you want to make some money on these, I'll give you $90.[/quote]


I will give it some thought , Thanks for the offer :thumbwink:

Re: What ratio are these?

Posted: Fri Mar 18, 2011 1:48 pm
by sanjuro
KingJeff801 wrote:
Trafficjamz wrote:The package says 10% up
10% up from 12.1:1 is 10.89:1
The only way to know for sure, is to count the teeth, when you get them.
I will give them a count when gears arrive, do the bikes in japan come stock with 12.1:1 gears?
Baseline Dios (non-ZX models) come with 12.11:1 gears.

The ZX models are 10.91:1.

Re: What ratio are these?

Posted: Fri Mar 18, 2011 2:12 pm
by KingJeff801
sanjuro wrote:
KingJeff801 wrote:
Trafficjamz wrote:The package says 10% up
10% up from 12.1:1 is 10.89:1
The only way to know for sure, is to count the teeth, when you get them.
I will give them a count when gears arrive, do the bikes in japan come stock with 12.1:1 gears?
Baseline Dios (non-ZX models) come with 12.11:1 gears.

The ZX models are 10.91:1.
The package says DIO ZX so I wonder if its 10% up from 10.91:1?