Chain size for 39/22 gears

[DMCTurbo]

Does anyone know if the stock 86 link chain will work with 39/22 gearing?

 

[DMCTurbo]

Can anyone confirm if the stock 86 link chain will work? The gear charts I've found don't show this combo.

Thanks

 

[HURRICANE]

Yes it will

 

[ROCKERDAN]

I wonder how much slack though?

I just posted a ton pics in my build thread... from today's tear down.
https://ty4stroke.com/threads/my-rt...et-the-mods-begin.149801/page-28#post-1440629

I pulled my 22 gear, went back to stocker 21......and notice after 1450 miles, my chain stretched alot, and my adjuster bolt only has 5 threads left max.....So you might be even worse with that combo i would think.

I guess we can cut down that alum spacer if need be....The larger cat gears seem to fit with the chain adjuster bolt better.

Dan

 

[NYTurbo]

There is a formula for this top sprocket plus bottom sprocket ÷ 2 + 54.19

The 54.19 comes from the centre distance which is 10.16 on the process chassis x2 ÷ .375.

Just started using this formula last year and it seems to work fine.

 

[DMCTurbo]

Yes it will

Thanks Dave I'll be ordering your alignment tool and 39 gear shortly.

 

[DMCTurbo]

There is a formula for this top sprocket plus bottom sprocket ÷ 2 + 54.19

The 54.19 comes from the centre distance which is 10.16 on the process chassis x2 ÷ .375.

Just started using this formula last year and it seems to work fine.

You lost me LOL

 

[NYTurbo]

22 + 39 ÷2 = 30.5
54.19 + 30.5 = 84.7 (So a 86 pitch )

 

[DMCTurbo]

22 + 39 ÷2 = 30.5
54.19 + 30.5 = 84.7 (So a 86 pitch )

Ok that's easier for me to understand.

Thanks

 

[Fleecer]

Ok that's easier for me to understand.

Thanks

DMC did you ever get around to installing these gears? I did and not sure I like the big loop in chain. Also had to remove spacer on tensioner bolt and replace with washer. Bolt is awfully far in, not sure I like this.

What do you guys think? Would you run this like that?

 

[DMCTurbo]

I havent got around to ordering it yet but according to the formula above you don't have a choice but to run the 86.

I myself prefer the chain with less of a dogleg. Maybe some others will chime in...

 

[Fleecer]

I havent got around to ordering it yet but according to the formula above you don't have a choice but to run the 86.

I myself prefer the chain with less of a dogleg. Maybe some others will chime in...

Well, if the consensus is that the dogleg is too big I may have a gear for you cheap....0 miles!! Lol

 

[DMCTurbo]

Well, if the consensus is that the dogleg is too big I may have a gear for you cheap....0 miles!! Lol

i went to buy a 39 the other day and I couldn't believe how expensive they were! Over 200$ cdn so I decided to wait.

 

[Fleecer]

Yup, they were $88, so I ordered one and then noticed price jumped up to $174.

I'm exploring my options here and thought of putting 23 on top but no one makes it. Only other option is 24 which albeit tight, should fit. However 24/39 is awfully tall for racing on snow. I don't think it will pull it if conditions are loose.

Anyone run these gears on snow?

 

[DMCTurbo]

Yup, they were $88, so I ordered one and then noticed price jumped up to $174.

I'm exploring my options here and thought of putting 23 on top but no one makes it. Only other option is 24 which albeit tight, should fit. However 24/39 is awfully tall for racing on snow. I don't think it will pull it if conditions are loose.

Anyone run these gears on snow?

I thought they were cheaper the first I looked. I couldn’t believe the price more than doubled. Not sure why...