| Author | Message | ||
     Jmartz |
Turns out there is a company called sprocket specialists that makes rear units color anodized and hole-lightened. Unfortunately they do not supply trans units and it isn't clear from their web page what size chain these use. Their products are cool though. | ||
| Shooter |
Jose, sprocket specialists does make a 21 and a 22 counter sprocket, I purchased them a few weeks ago. | ||
| Jmartz |
Shooter: I want to use at least a 24 tooth to avoid chewing up the swingarm block. It is not easy to put a nylon rubbing block in there w/o ,major disassembly of the bike. Custom Chrome sells 5-speed Sportster trans sprockets in various sizes exceeding 24. Unfortunately I suspect they are flat (and not offset) and will require a custom spacer for proper alignment. Jose | ||
| Jmartz |
Shooter: Is your sprocket for a 520 or else? | ||
| Ralph |
PBI has front sprockets up to 26 tooth. Sprockets Specialties has virtually any rear sprocket you want. I've had to make spacers for the front sprocket. Cap knows of a place to get spacers. There are going to be clearance problems with the aluminum swingarm. I'm working on mine right now. I'll let you know what I find when I'm done and sure of things. By the way, all the above sprockets are 530. bighairyralph | ||
| Shooter |
520 | ||
| Jmartz |
BHR: How can I contact PBI? Don't even know what the letters stand for. Jose | ||
| Dynodave |
The 520 front sprockets are made by cutting the 530s down. You can have a machine shop do this or Sprocket Specialties has them. I prefer running the 530 on the street; the sprockets last longer and the chains are MUCH easier to get. | ||
| Ralph |
Pretty Big Individual. Dennis Kirk sells them. Thirty some bucks a piece. Half the price of Sprocket Specialties rear sprockets. (800) 328-9280. bighairyralph | ||
| Jmartz |
DD: I wanted to convert to chain in order to have less overall weight. Can this still be achieved with a 530? What kind of life (miles) do you get out of a rear sprocket? Jose | ||
| Jmartz |
DD: SS offers a hardening option for a surcharge that they claim doubles the life of the rear sprocket. | ||
| Ralph |
Jose, my 530 chain weighed a touch over four pounds by itself. Didn't weigh the sprockets. bighairyralph | ||
| Ralph |
Has anyone converted an aluminum swingarm bike to chain drive? bighairyralph | ||
| Jmartz |
Ralph: I've got some pics of an X1 with the chain conversio at home. When I get there today I can forward them to you. I just ordered a 24 tooth sprocket to see its diameter in comparison to the 27 trans pulley. People have used 22 (with milling of the SAB) and 23 with a mutilation allowance. 24 might just work right and clear an Al SA | ||
| Ralph |
Jose, I'm using a twenty-five/fifty two. Problem is with the WP shock and the amount of preload (all of it) I have on the shock the bike rides very high. I can easily lower it (providing more clearance) by making a new shock mount and using a more powerful spring. I'm just not sure at the moment it'll do me any good with the other plans I have. By the way the twenty five tooth sprocket clears all the innards of the motor. Diameter outside tooth to outside tooth is 5.350. The twenty six will need a little "reshaping" of one non-stressed boss on the case. Size on that one is 5.560. Remember, the front sprocket has more of an effect on the clearance than the rear. The bigger the front the more clearance. Yeah, I know, you know. Just had to mention it. Cap mentioned that he removed some of the swing arm block where it would interfere with the chain. Easy enough to do with a carbide cutter on a die grinder. bighairyralph | ||
| Chuck |
Ralph, please post pictures when you can  | ||
| Ralph |
Chuck, I will. Things are not looking good. Jose, I got the photo but it was kinda messed up. Couldn't even save it. It would probably be best if you could post it here (then Chuck will get off of my back  ). I like his choice for a chain slider, very appropriate. Unfortunaltly it looked alot like my set up. The only reason there was clearance over the swingarm is the slider on the mounting block held it up. Held it up high enough that it's not a slider, but actually a third contact. That seems pretty extreme to me. At the same time, that material is certainly made for heavy continuous chain contact. It's looking to me that there isn't any way of getting enough clearance except for either lowering the bike a large amount or cutting the swing arm and block for clearance. I'm not looking at the latter as a real possibility. I've got some measureing to do and some geometry games to play. bighairyralph | ||
| Jmartz |
Ralph: I've given up posting pictures here. I have to degrade them to such an extent that they are useless in detail. I'll try resending those to you. Jose | ||
| Jmartz |
Ralph: Did you get the pics this last time? I left for work while they were being sent. | ||
| Ralph |
I got it better this time but still not complete. Can't save it or anything. Could you send it as a jpg rather than bit map? If it's to much bother don't worry. I can see what I need, just can't post it for Chuck. Any way, talked to Henry Duga at Buell and that is basically the set up that he suggested. I wanted to see what the Buell racers were running and it's the steel swing arm. I'm going to continue with my efforts and see what I can do. At the moment it looks like I'll just lower the bike to gain a little more clearance. Only one more thing to make  bighairyralph | ||
| Jmartz |
I'm not crazy about the cast Al arm. It is bulkier, heavier and it makes it more difficult to remove the muffler with it on as there is less room under the bike in that area. Stiffness aside (and I am no superbike racer) I don't see why you would need it, especially if it presents problems rerationing the final drive, a must when you add torque and power. J | ||
| Ralph |
The two big "S"'s. I'm stubborn and stupid. I like the way the aluminum swing arm looks and by golly, I'm gonna make it work. Or not. My plan for now is to continue in this effort. At the end of the season if I still haven't been able to solve this problem I'll be going back to the belt. For the time being I need the chain. bighairyralph | ||
| Jmartz |
get it polished then...J | ||
| Ralph |
Jose, I don't think polishing it will give any more clearance. Unless I get carried away By all means try xat. I have had excellent results with it. Very fast, super simple. I got even less of the bitmap this time, not even half. bighairyralph |
