| Author | Message | ||
     Ezblast |
Older Harley's/Buell do not have a positive stop on low or high gear (1st & 4th or 5th). It will still move like there is another gear, but will continue without any resistance if there isn't. On newer bikes the shifter will not move any further if in high or low gear. Does the XB have this positive stop shifting action? Is there a way to adopt that XB tranny trait and put it in/on a Tuber/Blast tranny? EZ | ||
| Xbgeorge |
I know my 12R's shifter won't move up once it is in 5th. I have tried to shift to 6th many times. I think it will still move down after you are in 1st. I'll have to go check. | ||
| Xbgeorge |
Nope, it won't move down either. I can't answer your other question. | ||
| Froggy |
I demoed a blast recently, noticed it would do that. it drove me nuts, i wasnt ever sure what gear i was in! | ||
| Andymnelson |
Haha thanks for the help Edward...anxiously awaiting any potential replies.  | ||
| Nillaice |
i refer to "transmissions" as 'magic boxes' i've tried to figger it out, but i still don't know how they work. and in my experiences, if you open them up to learn first hand, then all the magic will fall out, and you'll never be able to get it all back in. unless your a magician... or "transmission expert" | ||
| Swampy |
I think it still has to do with the shape of the shift drum star. | ||
| Jramsey |
What you guys don't know what gear your in? | ||
| Ezblast |
How would the shift Detant plate perform that trick through the Drums action? EZ (Message edited by ezblast on September 13, 2008) | ||
| Froggy |
When you are riding a bike you never ridden before, don't know how many gears it has, can't figure out if it is actually changing gears, and lack a tachometer to confirm RPM reductions, lack a stop in top gear, then yes, i don't know what gear i am in. | ||
| Jos51700 |
"I think it still has to do with the shape of the shift drum star." It's a combination of drum design, and the "pins" that the "hooks" engages. When you toggle the (foot) shifter, the arm moves the hooks up and down to grab the pins, to turn the drum to select the gear. All the star does is keep it in the gear selected, and prevent the drum from continuing to rotate. As you shift to 1st, or 5th, there's a missing pin, so the hook can no longer rotate the drum in that direction. The shifter still moves, but it's grabbing air. Later transmissions have a pin there that the hook can grab, but the shift fork reaches the end of it's slot, and so the drum can go no further, thus providing a positive stop. Late XB's are a bit different in layout, but the principle is the same. The "pins" are shown redundantly in this image, from Badweb's own S1 service manual PDF.  | ||
| Ezblast |
Really cool - the question then is how different is the XB Drum - is it compatible at all with the older style tranny? EZ | ||
| Jos51700 |
The '06 and later XB drum? No (feasible) way. The '05 and earlier XB drum, I doubt it, and even if so, the shifting was kinda poor. My (penny pinchin') two cents, would be the baker drum, for better shifting, too. But, I haven't installed one, so I can't say how much better, and Baker stuff is still pretty spendy. It may require Baker forks for all I know. | ||
| Ezblast |
No, the Baker drum is the way to go though - smooth as silk shifting as reported by the KV, making it a must item the first time I split my cases. EZ | ||
| Andymnelson |
Very cool John (and Edward), thanks for the info! Sounds very not worth it for the positive stop, possibly worth it if I ever need to split cases... Cheers |
