Maintenance & Technical > KX250 / KX125

Gearing...Sprockets

<< < (2/2)

KevinTwoStk:
I'd like to humbly suggest a Renthal Twinring sprocket once you've found your preferred gearing.

I also suggest using an O-ring chain. I didn't feel any loss of power compared to a non O-ring chain. What I have noticed is that I don't have to adjust the chain very often, and that my chain doesn't get noisy even after I ride through mud or in wet conditions.

The countershaft sprocket will still wear out, though, and a 12T wears out faster than a 13T model. Since countershaft sprockets aren't too pricey and also wear out faster than the chain and rear sprocket I replace my countershaft regularly.

MXonaKawi:
UPDATE!!!

The 50T sprocket made it harder for me to clear long tabletops out of corners. I'm going to go back to the 51T and work on my jetting a bit to get it closer to perfect. If I still want to mess around with the gearing a bit more once I get my jetting perfect, I might try a 49T sprocket to see how that feels. I think the reason I didn't love the 50T was because it wasn't enough of a difference. The only difference I noticed was the inability to clear certain jumps. I'm also curious on how the 52T or 53T would feel.

MXonaKawi:

--- Quote from: MXonaKawi on September 01, 2015, 12:33:01 PM ---UPDATE!!!

The 50T sprocket made it harder for me to clear long tabletops out of corners. I'm going to go back to the 51T and work on my jetting a bit to get it closer to perfect. If I still want to mess around with the gearing a bit more once I get my jetting perfect, I might try a 49T sprocket to see how that feels. I think the reason I didn't love the 50T was because it wasn't enough of a difference. The only difference I noticed was the inability to clear certain jumps. I'm also curious on how the 52T or 53T would feel.

--- End quote ---

So my bikes jetting is great now. I've got it dialed in to where I'm super comfortable and I'm getting faster and staying on the pipe all around the track. I'm going to give a 52T sprocket a shot just to see if I like it better. I think a 53T is too dramatic of a difference. I'll let you guys know how the 52T feels.

MXonaKawi:
I threw on a 52T sprocket this week and it was interesting. Maybe I was just vibing really well with my 51T setup but it took a few hours of adjusting to get used to the 52T. Overall the acceleration was better and I was able to get more speed before jumps out of corners but I also had to shift a lot more...A LOT...which was surprising because I was expecting to shift more but just a little. I'm still not sure if the upside is worth the trade-off in comfortability and not having to shift as much. However, if after a few weeks I'm just as comfortable with the 52T setup as I was with the 51T, then I will just keep it and get used to the shifting to take advantage of the added acceleration.

Thoughts?

Motorrad:
I run 15-42. 

Navigation

[0] Message Index

[*] Previous page