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PostPosted: Wed Sep 16, 2020 12:43 am 
Retro Guru

Joined: Wed Aug 18, 2010 9:58 pm
Posts: 1176
Location: Highlands, Scotland
Thanks Velo. I regard 42mm as skinny tyres. :)

I know about the V-brake extenders but I wasn't keen on the idea. They're cheap enough though. :)

I had a more cunning ploy which involved manufacture of new brake arms and many happy hours with a file.

However I found in Akenahten's tomb a set of Magura dropbar hydraulics, so I thought they'd do nicely.


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 Post subject: Re:
PostPosted: Wed Sep 16, 2020 9:03 am 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider

Joined: Thu May 06, 2010 10:05 pm
Posts: 10047
Location: Scotland
Can’t Go far wrong with Maguras :D

How you going to get the hoses around the goolie graters ?


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 Post subject: Re: Re:
PostPosted: Wed Sep 16, 2020 11:10 am 
Retro Guru

Joined: Wed Aug 18, 2010 9:58 pm
Posts: 1176
Location: Highlands, Scotland
jimo746 wrote:
Can’t Go far wrong with Maguras :D

How you going to get the hoses around the goolie graters ?


Probably involve a cut and bleed job. Preferably on the brake.


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PostPosted: Wed Sep 16, 2020 8:53 pm 
Retro Guru

Joined: Wed Aug 18, 2010 9:58 pm
Posts: 1176
Location: Highlands, Scotland
More fun with wheels today.


26" x 2.35" Super Motos on Weinmann 57mm rims. Too big - tyre comes out at 65mm width.

Image


After a serendipitous find behind my shed, I pulled the wheels of an old Peugeot which has lain out for 10 years.

26" x 2.35" Super Motos on Alex 27mm rims (21 internal). About right - tyre comes out at 55mm width which leaves better clearance.

Image

More wheel fun to follow, but 26" wheels look a goer. I'd prefer better rims, these are single wall. I've got plenty nice DTSwiss and Mavic but they're all too skinny. I suspect the ideal compromise between tyre width and tyre shape is about 25 -27mm internal.

Looks like there's spoke shortage, so wheel building may go on the back burner, and it'll be bodge time instead.


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PostPosted: Thu Sep 17, 2020 9:25 pm 
Retro Guru

Joined: Wed Aug 18, 2010 9:58 pm
Posts: 1176
Location: Highlands, Scotland
Trial fit with narrow rim at front.

Image

Plenty clearance.

Image

Looks like that's the size to go for front and rear. Wheels look better with shiny alloy rims anyway.

Meanwhile after further excavation, I found I had a pair of 40mm lightweight rims plus a Sun Ringle Big Mammoth Fat, but I think I'll stick with shiny alloy.

I'll have to build wheels though. That front hub is knackered.

Now if only I had a set of double wall rims instead of single wall...

And while I'm looking for pie in the sky, about 32-35mm is probably the optimum size.


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 Post subject: Re:
PostPosted: Thu Sep 17, 2020 10:13 pm 
Retro Guru
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Joined: Tue May 11, 2010 6:39 pm
Posts: 1724
Location: South Devon
Coming along nicely. I'm happy you've kept it 26". 8)


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PostPosted: Tue Sep 22, 2020 7:47 pm 
Retro Guru

Joined: Wed Aug 18, 2010 9:58 pm
Posts: 1176
Location: Highlands, Scotland
Trial fit Magura dropbar hydros

Image

I could make it work, but getting a wheel in or out without deflating the tyre would be a hassle. I don't like hassles.

I wonder should I make it rodbrakes... :)


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 Post subject: Re:
PostPosted: Tue Sep 22, 2020 9:38 pm 
Retro Guru
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Joined: Tue May 11, 2010 6:39 pm
Posts: 1724
Location: South Devon
Wide profile cantis would be the obvious choice... Maguras are cool, but I agree, who needs hassles?


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PostPosted: Wed Sep 23, 2020 12:00 am 
MacRetro rider
MacRetro rider
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Joined: Fri Feb 09, 2007 4:16 pm
Posts: 9425
Get the quick release mount for one of the brake posts. Undo one lever and remove one side of the Magura. The quick release kit I thought was standard equipment for Magura?


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PostPosted: Wed Sep 23, 2020 7:01 am 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider

Joined: Thu May 06, 2010 10:05 pm
Posts: 10047
Location: Scotland
How often do the wheels need to come off though? If you get a flat, then the tyre will deflate itself and save you the trouble... :)


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