Ducati.ms - The Ultimate Ducati Forum banner
Cancel

4k RPM at 70-72 MPH...Is this 14t?

1251 Views 8 Replies 8 Participants Last post by  Sandalwood, 
Sandalwood
I'm trying to determine if the previous owner changed the sprocket. I am turning 70-72 mph at 4000 RPM, and 4500 at 80-82 in sixth gear on my '08 1100S. Is this a 15-tooth or 14-tooth?

I've also read that a different chain (520 pitch instead of 525) is required when going to the 14-tooth, and I'm wonder if that is true? It wasn't the case with previous motorcycles of mine.

Thanks!
Reply
Save
Like
1 - 9 of 9 Posts
S
Count them?


Sent from my iPhone using MO Free
Reply
Save
Like
LeFauxTard
Sandalwood said:
I'm trying to determine if the previous owner changed the sprocket. I am turning 70-72 mph at 4000 RPM, and 4500 at 80-82 in sixth gear on my '08 1100S. Is this a 15-tooth or 14-tooth?

I've also read that a different chain (520 pitch instead of 525) is required when going to the 14-tooth, and I'm wonder if that is true? It wasn't the case with previous motorcycles of mine.

Thanks!
Click to expand...
Why not expose it and count the teeth? You don't have to take it off.
I hope you read wrong. I just installed the 14T and kept my stock chain.

Attachments

See less See more
Reply
Save
Like
Shazaam
Sandalwood said:
I'm trying to determine if the previous owner changed the sprocket. I am turning 70-72 mph at 4000 RPM, and 4500 at 80-82 in sixth gear on my '08 1100S. Is this a 15-tooth or 14-tooth?

I've also read that a different chain (520 pitch instead of 525) is required when going to the 14-tooth, and I'm wonder if that is true? It wasn't the case with previous motorcycles of mine.

Thanks!
Click to expand...
You have a 15-tooth front sprocket.

The 520 and 525 chains have the same link pin-to-pin length so you can use the same chain. Just make sure that the replacement 14-tooth sprocket is also a 525.

525
plate thickness: 2.0 mm
roller length: 22.95 mm
pin-to-pin distance: 15.875 mm

520
plate thickness: 2.2 mm
roller length: 20.20 mm
pin-to-pin distance: 15.875 mm
See less See more
Reply
Save
Like
Rob H
Probably stock per: Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator. But yeah, count 'em! ;)
Reply
Save
Like
dimitrinassis001
Well when in 6th 110km/hr is 4000 rpm on my 796 i believe.
Reply
Save
Like
vb1100sp
You have 15t if 70mph at 4k rpm


Sent from my iPhone using Motorcycle
Reply
Save
Like
complexCarlo
15t buddy. Its normal.
Reply
Save
Like
Sandalwood
Excellent. Thank you, everyone! And yes, I will count to confirm.

The thing I saw about the chain pitch was on Pro Italia. Their 14t under "Hypermotard final drive" showed as being only compatible with a 520 chain, so I (apparently incorrectly) assumed this was the 14t that everyone else is using.

I'll take a look around for a 14t for a 525 chain -- after I count the teeth. :)
Reply
Save
Like
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Ducati.ms - The Ultimate Ducati Forum
A forum community dedicated to all Ducati owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, superbike racing, maintenance, and more!
Full Forum Listing
Explore Our Forums
Superbikes Multistrada Ducati Motorcycle Chat Sport Classic HyperMotard
Top