| Author | Message | ||
     Jmr1283 |
So my friend is getting a mill and ive been wanting to change the gearing on my bike and what better way then make my own. theres only a couple things im needing. What type they use for aluminum sprocket. Im thinkin of possibly goin steel for the front sprocket and aluminum for the rear. umm lets start with that. i imagine ill get more questions. maybe i should put thins in another area oh well | ||
| Rsh |
I think I would start with what is readily available first. Example being would a Aprilia counter shaft sprocket work in place of the front pulley, also there are a few companies that already make rear sprockets for the XB's and the 1125 rear wheel rim is the same so you do not need to fabricate your own sprocket. You would only need to come up with the proper idler/tensioner to control the chain slack and you could probably get an idea for that by looking at what people have used when converting a XB to chain drive. I do not see at this time why a XB style chain conversion would not work, and some people have done it in the $200 dollar range. | ||
| Boogiman1981 |
why go to a chain? is there a power limit inherent in belts? | ||
| Carbonbigfoot |
Ease of changing ratios, for one. Not a big deal for me, but to each their own. R | ||
| Slypiranna |
7075 Alloy w/hard Black anodized coat is the way I'd recommend... BUT, I think they already sell said sprockets for the rear now...seen them on ebay last month. Best of wishes on your project! | ||
| Boogiman1981 |
dont want to thread jack but other than ratios? are there reasons? | ||
| Hammer71 |
Break a belt on a long trip with no dealer around and you have youre reason. Chain can be bought at any cycle shop (this belt/chain question always starts some serious BS so Im sticking to the question at hand) The sprockets are all over the place. Vortex comes to mind as thats what I have on the XB. Youre main issue, as stated above will be the idler/tensioner. It wont be anywhere near the XB setup as it has a different a mounting setup | ||
| Zac4mac |
I have a stock belt, tightly coiled under my seat - a spare. Court sent it to me as a test, it's been under the seat almost two months now. In a few more days, I will put it on the driveline and see how long it lasts. If it works out OK, there's room for it if you don't have the "California Can" on your fuel vent-line. I really like the idea of a spare belt that will last at least a couple of hundred miles - Hopefully enough to reach a dealer with a new one in stock. Belt change on the 11 is simple enough to do road-side with a minimum of tools. Z | ||
| Boogiman1981 |
i can see the broken belt being an issue. i've been on a shaft drive cruiser for the last six years so the new bike is also a new kind of bike for me. so does keeping one coiled up under a seat cause it damage? | ||
| Zac4mac |
In the past, the belts could be compromised by tension outside the normal plane or too tight of bends. Supposedly, these new belts are more "robust" in that regard. As a test, Court sent me a new, latest rev belt to torture and then run. There is a thread in the archives on this. I will start a new thread when I get the belt on and give a synopsis of the archived thread as a prologue. Hijack over - apologies to Jmr...  Zack | ||
| Anonymous |
The price on the factory racing chain drive kit was dropped recently. It's not cheap, but it includes about 27 parts, including a billet left side footpeg/chain idler sprocket carrier. It's very unlikely you'll be able to do a chain drive for less than that if you value your time at all. Also, it's very professionally done and has been tested throughly in last season's MotoST and Canadian Buell racing. However, if you're that ambitious, at least buy the front sprocket from Henry at Buell racing. They'll be available in quantity in mid-March (there's enough for racers now). You might be able to make or buy a kit from someone eventually that uses the stock swingarm and an adjustable idler sprocket, but keep in mind you'll never get the range of adjustment that you'll get from a conventional slotted swingarm. Consequently, you'll have to replace chains about 2 to 3 times as often. | ||
| Jmr1283 |
darn it i just wrote a huge post and my computer failed to post it. wow guys now this is how threadin is done. rsh- nice idea. you have a talented mind to think of a aprilia. i was just goin to cut and weld a sprocket on the old one, with the right spacers of course. with the idler pulley, i see a couple ways of doing it. make a bracket to attach the xb one from grand stand designs, or acquivalant. but i was originally thinkin before rsh's nice post that i would remove the belt pulley on mine and replace it with a sprocket. id probably have to make it. should be fun. isnt the buell swing arm race only? if it is does it mean u cant buy parts of the kit with out a race license.. Anonymous good stuff, good stuff. has there been a list of prices for each part put out on the internet for the chain conversion? oh and the reason im doin this is for lower gearing. and itll be fun. zac now thats not a hijack. people need to hear that stuff. good info. | ||
| Jmr1283 |
lookin the front sprocket over in the service manual is starting to cancel out the cut and replace with chain version. thanks to rsh and anonymous for some very logical and good options. | ||
| Jmr1283 |
i forgot that xbs are right side drive. jeeze theres no way itll mount up to the 1125r even with a bracket. lol. i feel dumb rate now. lol | ||
| Rsh |
On the converted chain drive XB's just as the 1125R the idler pulley is replaced with a sprocket that is usually close in diameter to the original idler pulley size to keep the geometry of the original drive system intact. Obviously the factory kit would be the ultimate choice. I still think it can be done on the 1125 without the adjustable swing arm just as it has been done on the XB's. | ||
| Krassh |
I believe you can buy it without a race license. The only parts you should need a race license for is the ECM and exhaust. | ||
| Jmr1283 |
rsh as long as i could keep tension in the chain as it wears, it could be the idler pulley, or a adjustable swingarm. the first seems like a much easier task. well it seems with the help of buell and other manufactures i could the essentials and still make the rear sprocket for fun. |
