Lets Talk Gearing....Caution!
Posted November 05, 2001 - 06:53 AM
I have learned to setup for jumps and technical stuff by listing for a specific engine sound (RPM). This works very well for me when I'm busy checking out the competition on the fly and trying to make decisions about the terrain ahead of time. The one factor that I failed to take into consideration at the time of the gearing change was the condition of the front sproket. When I cased the double a week ago which tore my calf muscle, I could not understand why I had come up short. The engine did not give me any indication that I was not up to speed, In fact It sounded very close to the rev limiter (Which I should have taken as a warning). Especially since I was in 4th gear...
Yesterday, out of the blue I decided to remove the front sproket cover and inspect the chainwheel. To my surprise (Because of my stupidy) I found that it was completely worn out.....I mean completely...plus ALL of the teeth were bent oppisite of the chain travel.....meaning that for the most part it was acting like a poker card on a bicycle spoke. I broke the number 1 rule of gear maintenance....ALWAYS CHANGE BOTH SPROKETS AT THE SAME TIME.... By not doing so I have put myself out of action for atleast another 2 to 3 weeks (atleast serious riding anyway).
The moral of this story is "Don't take shortcuts with maintenance" It's easy enough to get hurt by the terrain we ride in, It sucks to get hurt when the weather is nice because of carelessness.
Additionally: I picked up two new sprockets this morning, a new 14 and a 13. Anyone out there running a 13/50 13/52 or 13/53 combination out there? I'm thinking that the 13 is going to make 1st gear obsolete, and make 5th gear usable....
Posted November 05, 2001 - 09:46 AM
Posted November 05, 2001 - 12:48 PM
I am running 13 52 gearing on my 99 WR 400, Its the best combo for me. Yup, 1 st gear is almost usless except for starting out on steep hills, riding in VERY slow kiddi rides and engine braking, but it makes 2nd gear very usable and eliminates the uncomfy flogging of first gear or constant shifting between 1 and 2. Oh yeah you can use 5th too. I ride alot of tight trails and hills and I can practicly live in 2nd gear unless there is a pretty big straight away or fast jumps. Being on it in 3rd on a hill means getting air at the top .
Posted November 05, 2001 - 11:08 PM
If you changed to shorter gearing (which I believe you did) for the same engine noise (RPM) you would be travelling slower and therefore coming up short???
Or are you saying that you were fooled by the additional noise from the chain/cog. But wouldnt that noise/vibration have been different from a high(er) RPM ????
Or have I got my head in my &%ç and missing the obvious ??
Posted November 06, 2001 - 01:17 AM
I agree, REMOVE THE STUPID SPROCKET GUARD. Rocks can get pulled in and crack that beautiful engine case. Learned this little trick a long time ago.
Posted November 06, 2001 - 02:19 AM