Hello from a Gen4 M Sport track day rider

[alex]

Each mode on the Gen3 has different nuances compared to OEM. There's a table...

I'm sure the Gen4 will be similar...ahh it is.

 

[bmwbadboy]

I'm sure the Gen4 will be similar...ahh it is.

Ya.

ps.

I do have ECU with RS2E map for Gen4. Need to figure out what to do with it.

 

[steve929rry]

You could lend it to me to test it at Brno for you. ?

 

[steve929rry]

That question mark was meant to be a smiley face with a wink... still learning how to use this forum.

 

[steve929rry]

Badboy,

According to chaincommander.com 16/43 with the standard 120 link chain will give a 12.2 mm effective increase in swinging arm length and in combination with a 122 link chain you would get a 28.1 mm increase in swingarm.

As most club racers would change both chain and sprockets together for 520, when you use 16/43 final drive do you use standard 120 links or 122 link chain for increased stabilty and wheelie reduction?

Also, would you consider 124 links to give an even longer wheelbase? Measuring my bike's remaining slot in swingarm it looks like 124 link chain with 16/43 may be just about possible as it gives a 44.1 mm length increase.

Steve

 

[bmwbadboy]

Badboy,

According to chaincommander.com 16/43 with the standard 120 link chain will give a 12.2 mm effective increase in swinging arm length and in combination with a 122 link chain you would get a 28.1 mm increase in swingarm.

As most club racers would change both chain and sprockets together for 520, when you use 16/43 final drive do you use standard 120 links or 122 link chain for increased stabilty and wheelie reduction?

Also, would you consider 124 links to give an even longer wheelbase? Measuring my bike's remaining slot in swingarm it looks like 124 link chain with 16/43 may be just about possible as it gives a 44.1 mm length increase.

Steve

Hey Steve

From my limited experience I have never seen anyone running 122/124 links.

120 with 16/43 drive will fix the problem with wheelies in 99% cases with right electronics.

Why do you need such a long swingarm?