Monday 24 July 2017

Dawes Ultra Galaxy 853; Making more out of an ace bike, Pt 3 of 3...

Rear Disc Brake Conversion...

Time to add a rear disc to the Dawes Ultra Galaxy by way of fitting a a2z mount.
I fitted one of these years ago to an early Cannondale Super V, and although  different to this one now advertised, that original one worked fine with no issues so i was happy to splash out and buy another for £26-that`s a lot cheaper than a disc mounted frame!...


The instructions say it is only intended for Aluminium drop out frames with large flat drop outs.  I could see why when i fitted it and the mount caught the steel seat stay ends where they met the flat drop outs.
I marked them with red marker pen that you see in the pics then got grinding, as you do......



15 mins with the bench grinder and back and forward to re fit them on the bike to try and they soon fitted fine!...


Canny beat a bit garage tweaking!...
I tried the hub with disc rotor fitted (1st pic) and set up the calliper so it spun in line and would be ready to refit once the wheel was relaced to the disc hub.
I then stripped the rear wheel rim and took the new 185mm spokes, tool, and wheel jig etc inside...

With an early Sunday evenings bed after a mad weekend i woke early and was up at 5am as loads to do this week after work every day with planned  DIY on the house. I laced up the Dawes wheel and soon had the Shimano XT rear disc hub trued...



Job done and off to work on the Pashley and a lovely morning...



Busy day at work fencing and other stuff but here is a pic of the hens lol..


4pm home time and roasting hot as i got a heat on cranking home into a warm easterly headwind...



Home and out to the man cave and a final true of the wheel before refitting the tyre and adding the cassette and disc rotor and mounting up, all sweet and spinning nice...


Adding a rear cable after i stripped the Canti brakes and canti brake seat stay rear cable, i added the supplied BB7 Road cable adjuster on the front section and then ran a section of rear cable to the  calliper to get everything operational. A full outer rear brake cable would have been better for off road grit etc instead of the stock set up but this will do for now...



Job done and a quick spin around the block and all is fine. Seat bag removed as swings about and the small Top Peak mount won`t interfere  with the seat pack if i do use it, i need another better rear light and another Zefal rear guard as it`s useless with no rear guard as a commuter, but it is ready to go for the commute tomorrow!...


More soon...

6 comments:

  1. Nice one. If you can unscrew the canti boss you can get a boss cable grip that fits in place by m part. They do m8 or 10 in sliver or black. M part also do top tube cable guide set and self adhesive cable guide packs. I have them on old ti frame for many years that i got converted to disc and tidies up the cable tie to the frame solution.

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    1. Hi, thanks for the heads up on the M part boss cable grip. i will need to try some mole grips on them as they do not have flat spanner edges to remove, they may be bonded on.
      I have some top tube cable guides i will fit soon too,

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    2. The canti mounts are non removeable sadly,

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  2. I wish I had read about the Dawes disc brake conversion 2 years ago as I would probably have done this instead of building up a Genesis Croix de Fer. I didnt realise there was a separate mount available and thought the only way to do it was to have a mount brazed on. But I'm very happy with the Genesis and still have the Galaxy......there's always something to learn. Thanks for the posts though, very useful.

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    1. Hi Dave, i went looking for an old disc conversion kit like i previously had years ago and found these nicer looking new ones on eBay,

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