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Post by brianw on Nov 23, 2008 17:47:05 GMT -5
hello all.
ive searched but no for sure answers here that i could find...
Im putting some spokes on my US Spec 1980 SR500. I purchased an XS650 front wheel, which from what ive read will go right on with the use of my SR rotor and such.
Now for the rear wheel... ive read that the XT500 wheel is the ticket if i want to retain my drum brake.
now im wondering if the 18" TT500 wheel will also work the same, as in bolt in the swing arm and hook up my brake arm and such.
if not, can i atleast use the hub and have it laced to new rims(something id like to do in the future to both front and rear wheels).
thanks, i just want to clarify what i can and cant use.
any specific years are better than others?
doesnt the SR fro 79 and under have 2 bearings on one side as apposed to 1 on the 80 and laters? maybe...?
thanks in advance!
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jeffz
Full Member
Posts: 215
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Post by jeffz on Nov 23, 2008 19:13:03 GMT -5
Yes, my 78 has three bearings in the rear wheel. Just replaced them this summer.
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Post by brianw on Nov 24, 2008 2:02:09 GMT -5
Yes, my 78 has three bearings in the rear wheel. Just replaced them this summer. does this mean you cant use a 2 bearing wheel on a 3 bearing bike(swing arm/ drum setup)?? |
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Post by StewRoss on Nov 24, 2008 2:40:44 GMT -5
You can use the TT wheels however the sprockets are solidly mounted to the hub and have no cush drive unlike the XT wheel...or the drum SR wheels. SR  |
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Post by davedunsboro on Nov 24, 2008 5:02:56 GMT -5
Or you could do what I did (it is possibly cheating as it takes out the "idiot factor" totally)Use SR400 wheels & they just bolt straight on ! If you get lucky you can get the brakes & gear too & yours being an 80 model ,the swingarm is the right one so your rear brake wont need any mods at all .& you'll have a spare set of brakes for your rear as the old ones fit! I'm sure you've got to be able to get them in the US as they as easy enough to get here .Cheers Dave.
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Post by curly001 on Nov 24, 2008 5:04:54 GMT -5
Another thing with the TT hubs is when they went to alloy swingarm the axle lenght increased to allow for different chainadjusters and the brake plate had a slot to engage the alloy arm instead of a torgue arm. So if your going to use one make sure you get an early model hub. Also the 76/77 used a larger size brake plate, same as YZ400 then the 78 on used the same size brake plate as the XT. If you want to save weight you could use a hub off any of the later 78-84 YZ hubs. The brake plate is the same size as the TT/YZ front drum and was magnesium. You can also adapt the small twin leader brake plate to work on the rear drum. The XT hub will go straight in. Any more questions don't hesitate to ask. Curly
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Post by brianw on Nov 24, 2008 12:43:45 GMT -5
Or you could do what I did (it is possibly cheating as it takes out the "idiot factor" totally)Use SR400 wheels & they just bolt straight on ! If you get lucky you can get the brakes & gear too & yours being an 80 model ,the swingarm is the right one so your rear brake wont need any mods at all .& you'll have a spare set of brakes for your rear as the old ones fit! I'm sure you've got to be able to get them in the US as they as easy enough to get here .Cheers Dave. Trust me Dave if it was that easy i would have already done it! We never got any SR400s here in the States... only SR500s which all came with Mag wheels. I could possibly get some from Japan, but that would be costly to track them down and have them shipped. So it sounds like i want to pass on the TT hub and just hold out for an XT then... thanks! any other info is very much appreciated! |
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Post by solo2racr on Nov 24, 2008 14:00:46 GMT -5
So it sounds like i want to pass on the TT hub and just hold out for an XT then... Good luck with that. XT hubs are almost like hens teeth here in the US. While it may not be as easy, you may want to look at some of rear hubs/wheels from some of the later model dual purpose/motard style bikes. You'll have to want a disc rear brake though. |
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Post by Just Plain Bill on Nov 24, 2008 15:23:51 GMT -5
There's a 1976 XT500 wheel on eBay priced at $55 Buy it now or best offer -- item 320041699587 . Doesn't come with a brake plate and the rim width is just 1.85" which limits tire size somewhat. Still, if they are that scarce, I'd jump on it. He might have the brake plate.
Bill
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Post by curly001 on Nov 24, 2008 17:33:41 GMT -5
I have a few spare XT hubs that I'm willing to sell at a reasonable price all have 2.15" rims, also have brake plates.
Curly
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Post by davedunsboro on Nov 24, 2008 23:09:26 GMT -5
Brian , they never came here either (SR400s) ,but there has been a few crew importing them & onselling & now they are starting to break & wreck them ! I'm just surprised that nobody is doing that over there as well as all the other parts that you guys can get (Mike's XS & Thumperstuff) The gear I got cost me $1000 aus to my door & there was no mucking with rims minus hubs & you need these spokes & oh yeah what about the brakes? It was all in the box & bolted on easy as ! I actually don't mind the drum brake look & ,it gives it that early 70s feel & they work fine.Good luck whatever ! Dave.
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Post by centaurhc on Nov 25, 2008 23:22:57 GMT -5
Does anyone know if there is a spoked wheel with a disc brake that will fit as SR500? I would like to have spoked wheels but would also like to retain the rear disc. Thanks.
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Post by wizz954 on Nov 26, 2008 3:21:29 GMT -5
Good luck with that too! I tried for 2 years to find exactly that! Disc brake spoked rears are rare. Only a very specific RD350 that was made for only one year until they went to cast, otherwise late model MX wheels is the only option.
I heard a certain model XT600, but beware, most hubs are too wide and somewhere else in this forum someone actually cut one in half to make it narrower and welded it back together!
If you can find one, you'll still have to modify to fit the SR rear caliper. If you go to that trouble, you are better off finding a lighter caliper and make a carrier as the SR rear caliper hanger is heavy and the brake pad anti-rattle shims tend to break.
I ended up converting from disc to drum with an XT500 hub and drum swingarm. You do need to make a wheel spacer to replace the rear brake hanger.
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Post by caferacercarl on Nov 26, 2008 3:36:36 GMT -5
RD400DX ,made for some 8 months only and has SR style disc, as rick said, best of luck, I have only seen one in 30 years in the trade cheers,carl
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Post by solo2racr on Nov 26, 2008 10:18:00 GMT -5
Like I said, I'm sure you can find a few modern dual purpose/motard style bikes with rear discs and cush hubs. If the axle should be to large from one of those, you have two option. one would be to change the bearings to ones that have the proper ID (isn't always available) and two, machine bushings to press inside the existing bearings.
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