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  • Conversion to rim calipers

     badblood updated 11 years, 6 months ago 5 Members · 13 Posts
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  • miggeth

    Member
    8 June 2009 at 5:10 pm

    I need to know what the part between the fork and the frame is. It’s like a spacer, but every time I search for one I get headset results.

    I’m looking for a spacer that has a cable housing stop for the conversion.

    Sorry for such a basic question but I need to know what it’s called before I can search for it.

  • miggeth

    Member
    8 June 2009 at 5:27 pm

    I’d also like to know what the fittings are called that screw into the frame that hold the calipers.

    This is really hard when you don’t know the names of things.

  • Gunner

    Member
    8 June 2009 at 6:49 pm

    Click on this link:

    http://www.parktool.com/repair/readhowto.asp?id=68

    It may be some help. 😉

  • tomlevell

    Member
    8 June 2009 at 9:44 pm

    Something like this for use with Cantilever brakes?

    http://www.sjscycles.co.uk/category-Cable-Hangers-683.htm

    I assume you mean brake bosses for the second part. You’ll need somewhere to screw them into and most bikes have them already installed or do not have the ability to have them. Again for cantilever brakes or V brakes only.

  • miggeth

    Member
    9 June 2009 at 3:16 am

    Thanks for the help both of you.

    I have the deep drop front hanger already, but it’s nowhere near as wide as the bearing between the frame and the fork. It would look strange and alter the height of the frame at the front. I suppose I could mount it further up, to the headset, but I was thinking of replacing the FSA (bearing?) with one the has an integrated hanger.

    My frame has threaded holes for the rear brake, but I need to find the actual pivots that hold the calipers in place. So far I can’t seem to find any that screw in.

    Would these hold on Shimano BR-550 calipers?

    http://www.sjscycles.co.uk/product.asp?pf_id=15886&src=froogle

    I can’t see how they screw in though, the holes are wider than the screw seems to be.

  • miggeth

    Member
    9 June 2009 at 7:30 am

    I’ve found the boss bolts, but not the bosses. Why are these so hard to find?

  • tomlevell

    Member
    9 June 2009 at 8:02 am

    Go to a decent bike shop and they’ll probably have a load of bosses in a box somewhere.

    What brakes are you trying to fit? Cantilever, V? Pictures would be useful.

    http://en.wikipedia.org/wiki/Bicycle_brake_systems

  • miggeth

    Member
    9 June 2009 at 11:56 am

    They’re shimano cantilevers

    http://www.pedalon.co.uk/acatalog/shimano_r550_brake_cantilevers.html

    to fit onto an element technic fork at the front

    http://www.chainreactioncycles.com/Models.aspx?PartnerID=79&ModelID=29730

    it already has bosses so they should fit straight onto that. I have the housing stop

    http://www.sjscycles.co.uk/product-Kalloy-Alloy-Front-Clamping-Ahead-Deep-Drop-Brake-Hanger-28.6-mm–1-1-8-Inch-Bore–Black-7164.htm

    on the steerer above the frame, I’d like it below the frame but I don’t think that one will fit there.

    Here’s the frame;

    http://www.voodoocycles.co.uk/frame.php?id=6

    it has threaded holes at the rear for the bosses but I’m unsure which ones fit.

  • tomlevell

    Member
    9 June 2009 at 12:05 pm

    it already has bosses so they should fit straight onto that. I have the housing stop

    http://www.sjscycles.co.uk/product-Kalloy-Alloy-Front-Clamping-Ahead-D eep-Drop-Brake-Hanger-28.6-mm–1-1-8-Inch-Bore–Black-7164.htm

    on the steerer above the frame, I’d like it below the frame but I don’t think that one will fit there.

    I don’t know of any cable stops that designed for use at the bottom of the headtube. Your best chance is shops who do a lot of cyclocross stuff. I think they are available as it can help stop fork flutter on cx bikes.

    Here’s the frame;

    http://www.voodoocycles.co.uk/frame.php?id=6

    it has threaded holes at the rear for the bosses but I’m unsure which ones fit.

    If you unscrew the ones from the forks do they fit in the rear? They should do then it’s go to a bike shop unless you can find some online which is unlikely.

    You’ll have to come up with a bodge to fit a canti on the rear of that frame as there is no stop for the cable. All MTB frames and forks are designed for V brakes now if at all.

  • miggeth

    Member
    9 June 2009 at 2:06 pm

    Yeah I just went to a bike shop and they had a few odd bosses hanging around, so that’s sorted. I also got a housing stop that attaches to the seat post clamp. I’ll have to wait for the cables to see if it all goes together alright and works.

    Well, I still like cantilevers even if no-one else does. Though I did just weigh them and they aren’t that much lighter than the disc brake calipers. I may swap back in the future after I stop being so pissed off that the disc almost cut my thumb off.

  • Steve Kish

    Member
    9 June 2009 at 2:16 pm

    they had a few odd bosses hanging around

    Sack the bastards!! 😉 😀

    Seriously, I used to love calipers but TBH, there was such a ker-fuffle adjusting these correctly.

  • miggeth

    Member
    25 June 2009 at 12:53 pm

    😆 What a waste of time and money, I put the rim brakes on and they were pants. I seem to have severely underestimated my disc brakes. Swapped back immediately. 😆

  • badblood

    Member
    25 June 2009 at 1:50 pm

    Well we did try to tell you!

    Welcome to the world of disc brakes! 😀

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