last off the line

I sent my assembled shafts. I had my circlip grooves re-cut wider and deeper and heavy duty circlips installed. I had the billet 4th gear installed, and the gears back-cut. My total was $594.00 and that included the shipping back to me. Turn around was about 6 weeks as I recall. If I had one apart, I wouldn't put it together without sending it there first.
 
i thought 4th is straight through the box and runs at crank speed that's why when they dyno a bike or car for that matter they use 4th gear
so if its straight through how is there a actual 4th gear ?
 
Fourth gear is driven by the third / fourth cluster gear on the input shaft Might sound confusing as that particular gear has the dogs that mesh with fifth gear on the input shaft. anyway the fourth gear on the output shaft is driven by the input and motion to the actual output shaft is made by the aft dogs on the fifth gear out put shaft. The forward dogs on the fifth gear output shaft allows drive to the shaft when they are mated in the first gear output shaft thus creating first gear motion to the shaft. which is driven by the permanent gear on the input shaft. Second gear input shaft is splined to the shaft and held in place by a snap ring or as the Brits call it a cir-clip.
not sure who told gave you the information but either he does not understand, looked at it wrong, was told wrong by someone else, or is smokin some good sheet

My bet is he did not purposely supply you with the wrong information whether his smoke was good or not

hope this is not confusing

and pardon my attempt at humor about the guy that supplied you the information perhaps he is talking about a different brand of motorcycle transmissions where the one he is talking about is that way. I suspect there is a difference between Triumph 6 speed and their 5 speed
 
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Bet you can't say that in Chinese.
 
He said say and this is written
 
I was expecting it to cost a lot more than that. No problems yet but
 
i thought 4th is straight through the box and runs at crank speed that's why when they dyno a bike or car for that matter they use 4th gear
so if its straight through how is there a actual 4th gear ?

Something in the back of my brain if fighting to get out regarding this...

I recall at one point, that was widely true for transmissions, and the result was a true 1:1 ratio, which is why 4th was perfect for dynos. It's been a very long time since that was true as a "go to rule" though. Even in cars, a 4th gear typically is nowhere near 1:1 anymore with gear counts escalating into the 8+ range.

On the rocket 5th is closer to 1:1 (its actually 0.96), where as 4th is 1.16:1. Theoretically we should all be dynoing in 5th not 4th, but people will whine and say "your numbers are high because its a 5th gear run".