13 Tooth front Sproket

[Magoo69]

Anybody try a 13 T front sprocket ? Stark sells them so I’m assuming someone has tried it. When I test rode the Stark in single track semi technical trails, I found that in the lower HP settings, 30-40hp it is somewhat hard to wheelie the front wheel over obstacles at slow speeds (logs, roots, rocks and so on).

My thoughts are the 13T would give it a little more pop at lower HP settings?

 

[AL_V]

Try it and report back, btw, I am under the impression that ktm sprockets should fit.

 

[mike61]

I found this in the Starkfuture shop. Looks like KTM and others!

 

[sand300]

I run the 13t.
in the woods 35-40hp is all that's needed. it'll lift the front no problem

 

[Magoo69]

I run the 13t.
in the woods 35-40hp is all that's needed. it'll lift the front no problem

Great, that’s what I’m hoping for. Thank you.

 

[Jocke_D]

I have been using 13-14-15 front from KTM. No problems. 15 is close but still fits. Will take a look when I remove it if there is any signs of wear to the "sprocket guard".

 

[Foss]

there maybe be a possibility depending on the teeth count for both sprockets and tire size we would need to reach out to Stark to push code to adjust our gear ratio. That’s if people want a close to accurate speedometer off the phone. Hopefully one day Stark allows us to adjust these settings.

 

[mike61]

Because of this thread I bought a 13 sprocket.
Today I wanted to change but a 13 was the original.
So I have one for replacement.

 

[spidartanks]

13 tooth comes stock now with the 18" rear wheel option

 

[mike61]

Ah, okay ! Good to know!! Thanks!

 

[JJ2]

I've heavily geared mine to 13 teeth front and 49 teeth rear. Mine was 14-47 MX stock version.
I find this makes it more controllable in wheelspin and the top speed is more realistic at 149.3km/h (92.7mph) compared to almost 167.6km/h (104.1mph).
The 13-49 combination is also better for same tooth same link 637 to 329.
The worst combination is 14-48 with only 56.
This is a fantastic website for the calculations

Gearing Commander - Motorcycle Speed and Drive Train Calculator v7

Motorcycle speed and sprocket calculator with bike database for gearing, sprockets, tires and chains of over 1900 bikes. Request yours to be added as well.

www.gearingcommander.com