14t sprocket doubts

I didn't change chain,and the contact between links and sprocket teeth is different to the change of front sprocket,for me defo gives a much smoother transmission.

 

ffs, stick a 14t sprocket on and see if you like it.

It's not difficult, really, it isn't.

 

A top quality DID kit is about £140

 

I went to a renthal 14t on my 848. Helps in town etc but found motorway cruising speeds to be in a more buzzy rev range and as i tour that was a pain. The chain seemed to stretch quickly too and i was always adjusting it.

I went to a 41 on the rear instead and find that a better compromise and uses stock chain length ok.

 

There is a train of thought that says the angles created by a 14t sprocket give the chain a really hard time.

 

I have had a 14t front for some time now - original chain lasted 17k i have no complaints whatsoever

 

I have ordered the 14 tooth front, for my 13 plate abs model, 6th feels too tall for my riding mainly on a and b roads,
And first a little tall in town, i appreceate the chain wear concerns but like tyres other factors affect wear
the dtc is only measuring tyre slip so the extra torque is working the tyre harder,
i hope to have it on for a long weekend up to nothumberland , and post my experience,,,, Forest,

 

Question for the riders that have installed the 14 t front sprocket on the 2013 Multis:

1. What is the difference in diameter between the 14 and 15t sprockets?
2. What is the chain clearance between the swing arm like with the 14t (ie, does the chain rub more of the swing arm chain runners)?
3. How much has it increased your RPM for any given speed?

 

You'll find some of the answers here Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator

 

For the RPM increase you can use maths.

You have reduced the number of teeth by one fifteenth (can't write fractions on here).

So RPM increase at any given speed will be 1/15*100% = 6.67%.

For example 6000RPM on 15 tooth becomes 6400 rpm on 14 tooth.

Hope I got that right - I was never any good at maths!!!

 

I have done nearly 3000 miles with the 14 t front sprocket ,
It is not much smaller diameter and the chain doesn't sit tightly on the top swing arm guide,
The low speed tall 1 st gear issue is improved more than calculations imply,
6 th gear is now useable with rpm up at 70 by approx 800 rpm,
fuel consumption isn't noticeably worse but it's much more lively to ride as sport is more super sport and roll on off is more controlled,
I won't be changing it back , it's a cheap mod that few seem to find actual issues with,
I hope this helps, forest

 

Everything you wanted to know but were afraid to ask.......http://ducatiforum.co.uk/f6/alternative-530-pitch-rear-sprockets-mts1200-457/

 

Thanks...I looked at that one too.

Thanks mate.....this is exactly what I was after. I was mainly concerned about the chain touching on the swing arm. You've answered that for me. Thank you.

Thanks, but I read that and its mainly in reference to the rear sprocket. I agree, changing the rear is the best practice option, but I'll wait till I need to replace the whole chain set.

 

I had a Monster 1100S and found it awkward to burble through villages at a steady 30, so I changed to a 14T sprocket and it certainly helped. I'd recommend it.

 

With a 15 tooth sprocket fewer than 8 teeth are in contact with the chain and doing the work; with a 14 tooth sprocket more like 7 so about 12% more strain on the teeth = much faster wear. A torquey twin gives chain and sprockets a very hard time anyway and is why increasing the rear sprocket is the preferred option for a longer life. (Thats yours and the chain/sprockets lol).

 

Well tracking down a 14 t sprocket in Australia is like trying to find an honest politician......so I've started to look farther afield. I've sent a couple of emails to supersproxusa but don't get reply.....maybe they don't like Aussies! Has anyone had dealings with them? Can anyone recommend another supplier anywhere?