will this wheel fit a '70 commando?

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yes, if you change the slider and find a caliper (I have one for sale) and get a master cyl and hose. I think the axle might be different also.
 
As well as having to change the fork slider to accomodate the brake pads for the disk brake, if you have a stock 1970 front fender you will have to ensure that the tyre you put on is narrow enough to fit within the fender stays - the stays and tyre on the 1970 and earlier are narrower than on later model bikes.

I put on a slightly wider than stock tyre on my 1970; and had to have inserts welded into the stays to widen them, and lever the fender out slightly so that the tyre would fit in. I am not sure if the rim itself got wider after 1970 - and if it did it probably doesn't matter provided that the rim will take a stock 1970 tyre; so if you do want to stay with a 1970 type tyre it might pay to check the manual (I think that there is one online on this site) to find the correct size tyre, and double check that a stock 1970 tyre fits this rim - logically it should, but I have found that some of my seemingly logical assumptions have been way out.
 
Chris is right. But it depends on which front fender goo has on the bike. There are not many 69/70 front fenders left out and about, even on the 69/70 bikes. The 69/70 front stays and bridge are shorter than the 71 stays and bridge, by about 1" and the fenders have a different curvature to them. He can tell by measuring the stays like this. These are 69/70 stays.

will this wheel fit a '70 commando?


and the 69/70 bridge

will this wheel fit a '70 commando?


The 69/70 was specified with a 3.00-19 front tyre and the 71 with a 4.10-19. I doubt if a 4.10-19 will fit under the 69/70 stays/bridge/fender. I think the 71 stays also had a double "S" curve where it met the fender, but I don't have any here and have not seen any recently.

It's easy enough to get a 71 fender and stays if he needs to in order to put a larger tyre on the front. It's nearly impossible to go the other way because of the lack of availability, although I think Andover is going to start making the early fender/stays bridge. I sent them some information they requested since they didn't have the bridge drawing.

Just be careful, the 71 fender and stays will foul in the 'S' type headers under hard braking.

I still say the TLS can be made to work perfectly acceptable without all this expense and exasperation unless goo really wants a front disk.

Dave
69S
 
I just saw the TLS front brake upgrade kit listed at $149 at Clubman Racing. Not quite as bad as the $214 someone mentioned. It is really nothing more than a fancy plate that stiffens up the pivot points so it could be made if you are good at drilling very accurate holes. These TLS units are desirable these days.

I think you should keep it as a '70 brake-wise at least for a while but it's your bike.
 
The TLS plate upgrade requires new pins, so it's not as simple as adding the plate. The whole kit is the best way to go unless you have a lathe and the time. I don't have the plate, and am happy with my TLS after arching the shoes. I'll let you know about the new high friction RGM shoes as soon as I get it on the road this spring.

Dave
69S
 
I put the High Friction shoes on the back. There is a "noticeable" improvement, but not huge. They get better as I drive it, 200 mile so far.

Goo, PM sent.
 
will this wheel fit a '70 commando?


looks like i need a wheel/ rotor, right fork, brake line, master cyclinder and whut else?
thx,
goo
 
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