13 tooth primary vs Stock 14 - A few words.
#1
13 tooth primary vs Stock 14 - A few words.
With stock or near stock power levels, a 13 tooth primary is a fantastic - almost "must do" - mod. Top speed is same or better as well as all accel scenarios.
However, once engine power reaches into the mid 20's - thru the various mod recipes we have developed - the stock 14 tooth primary is perfectly useable - and top speeds can see 100 mph ( indicated).
Note: There are no reports of the differences realized, between 13 and 14 primaries, on a 24 hp (or +) KLX.
However, once engine power reaches into the mid 20's - thru the various mod recipes we have developed - the stock 14 tooth primary is perfectly useable - and top speeds can see 100 mph ( indicated).
Note: There are no reports of the differences realized, between 13 and 14 primaries, on a 24 hp (or +) KLX.
#4
You are using the bike primarily as an off roader, as opposed to supermoto/street. Makes a difference for sure. I ran I think a 13/45 or 47 when riding in the deep sand in Michigan. No problem getting rolling, problem was steering in the deep stuff when the front wheel dug in and the bike got on the harder ground underneath. Kept crabbing up the side opposite what I wanted.
Now it's a 13/42 but when I get new chain and sprockets I will do a 14/45, which is virtually equal to the 13/42, so I can go up a bit with a 15 or down a bit with a 13 when needed. I mainly do dirt/gravel and tight back roads with the occasional more dirt oriented stuff. That is I do if I ever get all my joints working together again. Shoulder is doing great, but the knee is still crap. Double cracks every time I stand up and sometimes doesn't want to work too well.
Now it's a 13/42 but when I get new chain and sprockets I will do a 14/45, which is virtually equal to the 13/42, so I can go up a bit with a 15 or down a bit with a 13 when needed. I mainly do dirt/gravel and tight back roads with the occasional more dirt oriented stuff. That is I do if I ever get all my joints working together again. Shoulder is doing great, but the knee is still crap. Double cracks every time I stand up and sometimes doesn't want to work too well.
#7
Snap, crackle, pop...ouch! Knees are scary. I've had a completely snapped ACL since 1981 from the Permian Basin 100 Enduro out near Odessa, TX. Oddly I've still been able to continue riding with a brace and mountainbiking without much issue. Tennis, b-ball, volleyball, and any other aggressive cut and turn sports have been out for decades. I've had a little more issue with it in the last year, and I'm sure I'll be needing to have some work done. Hoping you get full recovery and use.
#10
Why would anybody even want to do this on a KLX? Our bikes feel terrible at high speeds, so why even think about raising the top speed ceiling at all? Take the acceleration where the gain will actually be utilized.