Advertise on Bikeforums.net



User Tag List

Results 1 to 16 of 16
  1. #1
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Raleigh Sports/700c brake caliper options...

    I'm running into some serious problems with finding brakes that'll work on my Raleigh build.

    To summarize: It's a Raleigh Sports frame that I'm using 700c rims with, and 700x37 Continental tires with. The tires are more like 35mm wide, rather than 37. The tires have a good amount of clearance on the frame, or so it seems to me.

    Based on what Sheldon had to say on the matter (Tektro R556 were a good match), I got a pair of R559's (which superceded the R556). They cleared the tires just fine, both in height and width. However, the reach of them was too long...they were just barely short enough to use on the rear, but too long on the front to properly place the brake shoe on the rim.

    I thought, okay, let's see what else is available. The Tektro R539's looked similar, but had a shorter reach in the range of what I needed. Got a pair, installed them, and found that they didn't clear the tires, both front and rear, and both height and width...totally unsuitable, since they were pressed against the tire at the top, and couldn't even be installed without letting air out of the tires. The reach was, however, perfect.

    So, now I'm wondering what my options are. I'm eyeballing old Weinmann's and/or Dia-Compes, thought I'd like to stick with dual-pivot. They look like they have better clearance, but I honestly can't tell which ones would work, since I can't find any actual data or measurements of the old calipers.

    Does anyone running 700's on a Raleigh Sports have any suggestions on some calipers that'll work?
    "Ahab knew, baby...I lust." -- Vet-san

  2. #2
    Warning:Annoying to jerks RaleighSport's Avatar
    Join Date
    Jun 2011
    Location
    STS
    My Bikes
    Leader 725, Centurion Turbo, Raleigh Team Technium, Schwinn Premis, GT Tequesta, Bridgestone CB-2
    Posts
    5,701
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by arex View Post
    I'm running into some serious problems with finding brakes that'll work on my Raleigh build.

    To summarize: It's a Raleigh Sports frame that I'm using 700c rims with, and 700x37 Continental tires with. The tires are more like 35mm wide, rather than 37. The tires have a good amount of clearance on the frame, or so it seems to me.
    2
    Based on what Sheldon had to say on the matter (Tektro R556 were a good match), I got a pair of R559's (which superceded the R556). They cleared the tires just fine, both in height and width. However, the reach of them was too long...they were just barely short enough to use on the rear, but too long on the front to properly place the brake shoe on the rim.

    I thought, okay, let's see what else is available. The Tektro R539's looked similar, but had a shorter reach in the range of what I needed. Got a pair, installed them, and found that they didn't clear the tires, both front and rear, and both height and width...totally unsuitable, since they were pressed against the tire at the top, and couldn't even be installed without letting air out of the tires. The reach was, however, perfect.

    So, now I'm wondering what my options are. I'm eyeballing old Weinmann's and/or Dia-Compes, thought I'd like to stick with dual-pivot. They look like they have better clearance, but I honestly can't tell which ones would work, since I can't find any actual data or measurements of the old calipers.

    Does anyone running 700's on a Raleigh Sports have any suggestions on some calipers that'll work?
    I'd be looking for some old dia comple single pivots very very very short, they do exist and are fairly plentiful but by the sounds of your problem though, I think you'll need the old school weinmann canti ones like you're thinking.

    I am curious though, how old is this Sports and did you have to modify the dropouts/spacing?
    “Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.”


    ― Ralph Waldo Emerson, Emerson in His Journals

  3. #3
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    It's a '74, and yes, I had to cold-set the dropouts, both front and rear. Not a huge amount, and I suspect that if I messed around with the spacers and nuts on the rear hub, I could go with the frame's original width.
    "Ahab knew, baby...I lust." -- Vet-san

  4. #4
    Warning:Annoying to jerks RaleighSport's Avatar
    Join Date
    Jun 2011
    Location
    STS
    My Bikes
    Leader 725, Centurion Turbo, Raleigh Team Technium, Schwinn Premis, GT Tequesta, Bridgestone CB-2
    Posts
    5,701
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by arex View Post
    It's a '74, and yes, I had to cold-set the dropouts, both front and rear. Not a huge amount, and I suspect that if I messed around with the spacers and nuts on the rear hub, I could go with the frame's original width.
    Interesting.. on my 72 I would need to file out the dropouts just to meet axle width for a 700c wheelset is more what I was getting at.. although the rear triangle on that bike is so age hardened I'd hate to imagine trying to spread it!

    Best of luck to you with your retrofitting!
    “Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.”


    ― Ralph Waldo Emerson, Emerson in His Journals

  5. #5
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by RaleighSport View Post
    Interesting.. on my 72 I would need to file out the dropouts just to meet axle width for a 700c wheelset is more what I was getting at.. although the rear triangle on that bike is so age hardened I'd hate to imagine trying to spread it!

    Best of luck to you with your retrofitting!
    I'm using a new Sturmey AW hub. Dimensionally, it's the same as the old AW's, but it has a longer axle and spacers to take it out to 130mm. I could take the spacing down to 112-115mm by eliminating the spacers and wider locknuts. However, I'd have to use a bunch of spacers on the outside of the dropout to ensure the outer drive-side nut is where it's supposed to be. I already have a 3mm spacer in there to achieve this, it didn't come from the factory with the correct spacing. I was seriously considering shortening the axle, until several other members here talked me out of it.
    "Ahab knew, baby...I lust." -- Vet-san

  6. #6
    Warning:Annoying to jerks RaleighSport's Avatar
    Join Date
    Jun 2011
    Location
    STS
    My Bikes
    Leader 725, Centurion Turbo, Raleigh Team Technium, Schwinn Premis, GT Tequesta, Bridgestone CB-2
    Posts
    5,701
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by arex View Post
    I'm using a new Sturmey AW hub. Dimensionally, it's the same as the old AW's, but it has a longer axle and spacers to take it out to 130mm. I could take the spacing down to 112-115mm by eliminating the spacers and wider locknuts. However, I'd have to use a bunch of spacers on the outside of the dropout to ensure the outer drive-side nut is where it's supposed to be. I already have a 3mm spacer in there to achieve this, it didn't come from the factory with the correct spacing. I was seriously considering shortening the axle, until several other members here talked me out of it.
    Yup, they were wise to talk you out of it too! You never know what that wheelset will end up doing in the end. I'm also curious as to why are you doing this? Is the frame small for you or something? Personally I like the ride of the 26x1 3/8 tires nice and cushy.. when I feel like riding a 40lb bike that is.
    “Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.”


    ― Ralph Waldo Emerson, Emerson in His Journals

  7. #7
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I started with just the bare frame, and since I was going to have to get wheels (among other things), I may as well just update things. Some of these updates have gone reasonably well, like the BB...other things, like the brakes, have gotten kind of exciting.
    "Ahab knew, baby...I lust." -- Vet-san

  8. #8
    Warning:Annoying to jerks RaleighSport's Avatar
    Join Date
    Jun 2011
    Location
    STS
    My Bikes
    Leader 725, Centurion Turbo, Raleigh Team Technium, Schwinn Premis, GT Tequesta, Bridgestone CB-2
    Posts
    5,701
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by arex View Post
    I started with just the bare frame, and since I was going to have to get wheels (among other things), I may as well just update things. Some of these updates have gone reasonably well, like the BB...other things, like the brakes, have gotten kind of exciting.
    Fair enough! I can't tell you how many escapades have started because I got a bare frameset.
    “Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.”


    ― Ralph Waldo Emerson, Emerson in His Journals

  9. #9
    Senior Member Tim_Iowa's Avatar
    Join Date
    Jun 2013
    Location
    Cedar Rapids, IA
    My Bikes
    1997 Rivendell Road Standard (tourer), 1997 Giordana XL-Eco (gofast), 2006 Cannondale F400 (MTB), 1988 Schwinn Project KOM-10 (gravel grinder)
    Posts
    316
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by RaleighSport View Post
    I'd be looking for some old dia comple single pivots
    It sounds like the proper brake reach with that frame and those rims is in the "standard reach" range, 47-57mm. It's tough to fit a 35mm tire under standard reach brakes; the max I could fit under Tektro 539's is a 32mm Pasela.

    Dia-compe / Weinmann 500 single-pivot calipers might work. They're plentiful in used parts bins and have better clearance than dual-pivot calipers.

    Dia-compe 510 centerpulls would probably get you the best tire clearance for that reach, but they're pretty hard to find.

  10. #10
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Tim_Iowa View Post
    It sounds like the proper brake reach with that frame and those rims is in the "standard reach" range, 47-57mm. It's tough to fit a 35mm tire under standard reach brakes; the max I could fit under Tektro 539's is a 32mm Pasela.

    Dia-compe / Weinmann 500 single-pivot calipers might work. They're plentiful in used parts bins and have better clearance than dual-pivot calipers.

    Dia-compe 510 centerpulls would probably get you the best tire clearance for that reach, but they're pretty hard to find.
    Cool! Thank you...there aren't any 510's on eBay, but there's no lack of 500's. I'll give those a try.
    "Ahab knew, baby...I lust." -- Vet-san

  11. #11
    Senior Member Salubrious's Avatar
    Join Date
    Dec 2012
    Posts
    284
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by RaleighSport View Post
    Fair enough! I can't tell you how many escapades have started because I got a bare frameset.


    But seriously a set of Weinmann centerpulls might sort things out, although you would have to find cable stops. The side pulls will stop you but they don't have the stopping power of a dual pivot. If set up right Weinmann centerpulls are not bad at all. $2.00 at your local bike shop used bin...

  12. #12
    Warning:Annoying to jerks RaleighSport's Avatar
    Join Date
    Jun 2011
    Location
    STS
    My Bikes
    Leader 725, Centurion Turbo, Raleigh Team Technium, Schwinn Premis, GT Tequesta, Bridgestone CB-2
    Posts
    5,701
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Salubrious View Post


    But seriously a set of Weinmann centerpulls might sort things out, although you would have to find cable stops. The side pulls will stop you but they don't have the stopping power of a dual pivot. If set up right Weinmann centerpulls are not bad at all. $2.00 at your local bike shop used bin...
    Oh I totally forgot about those brake cable stops they have for seatpost binder bolts if your frame doesn't have the stop too.. you'll probably need those as well.
    “Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.”


    ― Ralph Waldo Emerson, Emerson in His Journals

  13. #13
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Salubrious View Post


    But seriously a set of Weinmann centerpulls might sort things out, although you would have to find cable stops. The side pulls will stop you but they don't have the stopping power of a dual pivot. If set up right Weinmann centerpulls are not bad at all. $2.00 at your local bike shop used bin...
    Yeah, given my size, braking power is of great concern. Centerpulls are what I'm going to round up.
    "Ahab knew, baby...I lust." -- Vet-san

  14. #14
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by RaleighSport View Post
    Oh I totally forgot about those brake cable stops they have for seatpost binder bolts if your frame doesn't have the stop too.. you'll probably need those as well.
    Not a problem...those are easy to find.
    "Ahab knew, baby...I lust." -- Vet-san

  15. #15
    Warning:Annoying to jerks RaleighSport's Avatar
    Join Date
    Jun 2011
    Location
    STS
    My Bikes
    Leader 725, Centurion Turbo, Raleigh Team Technium, Schwinn Premis, GT Tequesta, Bridgestone CB-2
    Posts
    5,701
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by arex View Post
    Not a problem...those are easy to find.
    If your hunt gets rough let me know, I've got tons of the stem mount stops, probably quite a few of the binders still.. and quite possibly a few spare dual pivot centerpulls.
    “Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.”


    ― Ralph Waldo Emerson, Emerson in His Journals

  16. #16
    I WILL BE YOUR LARRY arex's Avatar
    Join Date
    Jun 2012
    Location
    Colorado
    My Bikes
    '91 Mtn Tek Vertical, '74 Raleigh Sports, '85 Nishiki Colorado
    Posts
    533
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by RaleighSport View Post
    If your hunt gets rough let me know, I've got tons of the stem mount stops, probably quite a few of the binders still.. and quite possibly a few spare dual pivot centerpulls.
    Thanks, I'll keep that in mind. I've already rounded some up on eBay.
    "Ahab knew, baby...I lust." -- Vet-san

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •