Page 1 of 3 1 2 3 LastLast
Results 1 to 50 of 103
  1. #1
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755

    New question here. A2Z Disk Brake Adapter for frames without disk mount, anyone try one?

    Just looking at this adapter http://www.a2zcomponents.com/ada.htm

    DM-UNI
    Features/Benefits:

    * Retrofits" tab-less" bikes with current disc
    brake systems - No need to buy a new bike!
    * No need to have special disc hub - fits most
    brands on the market: DT/Shimano/Sram....
    * Very easy to install - in just a few seconds
    Easy to put on/off your rear wheel as usual
    * No extra adjustments needed.
    * 100% CNC machined.
    * Pretty darn light
    Recommended for aluminum alloy frame
    Weight: 123g


    Anyone try one? Comments?

    How about using it on an older Ti HT frame?

  2. #2
    It's all ball bearings
    Reputation: gopriest31's Avatar
    Join Date
    Sep 2004
    Posts
    219

    Depends on your dropouts

    I bought one with aspirations of fitting it to my trek 8000- No dice- It really will only "bolt on" if you have flat droputs. I knew I would have to modify it to get it onto my frame (by notching the outer metal plate to clear my chain and seat stays where the attach to my dropout) But, by the time I got it close, there was very little material left. It never made it onto my bike- its collecting dust on my bench now

  3. #3
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    Thanks for the info. The drop out is flat, but now I'm wondering if there is space for it.

    I'll have to see if I can find one locally to try it.

    Anyone in the Vancouver area seen one of these at a LBS or a LBS who sells A2Z?

  4. #4
    Don't touch me!
    Reputation: beeristasty's Avatar
    Join Date
    Jan 2004
    Posts
    775

    I currently use one of those.

    Your frame will play an integral role in how well everything mates. On my '99 Schwinn Moab, the adapter makes the caliper sit a little higher than it should. The result is some brake pad lippage. Don't know if it will be a problem or not; it hasn't been for the last 4 months.
    No offense to KB, but if I see another "Strong, light, cheap. Pick two" line on this site...

    MCM# eleventy billion

    No offense to thieves, but if I see another "Ride it like you stole it" line on this site...

  5. #5
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    Any chance you could take a photo of your installation?

    The photo on their site isn't that great.

    Where did you buy it?

  6. #6
    Don't touch me!
    Reputation: beeristasty's Avatar
    Join Date
    Jan 2004
    Posts
    775
    Quote Originally Posted by CraigH
    Any chance you could take a photo of your installation?

    The photo on their site isn't that great.

    Where did you buy it?
    Got it at an lbs, had a gift certificate laying around doing nothing. Theres a few on eBay right now, along with a different styled adapter that hooks up to the canti boss.
    Attached Images Attached Images
    No offense to KB, but if I see another "Strong, light, cheap. Pick two" line on this site...

    MCM# eleventy billion

    No offense to thieves, but if I see another "Ride it like you stole it" line on this site...

  7. #7
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    Thanks! That looks like it would work with the drop out on my old Cove Hummer.

    I've got an email into the Cdn distributor & a company in Vancouver that used to sell A2Z trying to find out where to get one, but haven't back from either yet.

  8. #8
    mtbr "member"
    Reputation: Reek's Avatar
    Join Date
    Feb 2004
    Posts
    717

    Tried one and it's ok but

    There are issues with the adapter. As stated above, the drop out has to be flat. Then there's the issue of will it bolt on straight or "tilted" so the caliper is mounted a bit askew compared to the rotor.

    The inner block of aluminum really has to abut your frame so it doesn't flex and squeal like no tomorrow. and once you do get it braced against your frame, expect it to leave a nice little nick or gouge in the tubing.

    Finally, check and see if the rear wheel/disc hub with a 6 inch rotor can even clear your chain stays. Some pre-disc frames have chainstays that are narrower or "tucked in" infront of the rear drops. The adapter may mount ok but if you can't mount a rotor, forget it.

    Sounds all negative but I actually used one for a while on an old Infusion MXC pro hardtail I really didn't want to give up just because it didn't have disc tabs. So I put up with the squealing and poor alignment. Saved my frame from being sold. Now the frame is sitting in my garage, stripped down and as an ornament of earlier years of mountain biking.

    REEK

  9. #9
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    Thanks for the info. Good point about checking the disk clearance. I'll throw a disk wheel with a rotor mounted up in the frame to make sure it clears before I go any farther.

  10. #10
    mtbr member
    Reputation: jimbo2k's Avatar
    Join Date
    Dec 2003
    Posts
    556

    Used on two bikes

    Worked well one old Fisher Joshua, Mountain Cycles Moho required much modification to adapter. Like said before, depends on rear dropout. Jim

  11. #11
    mtbr member
    Reputation: wickerman1's Avatar
    Join Date
    Dec 2003
    Posts
    3,268
    Quote Originally Posted by CraigH
    Thanks! That looks like it would work with the drop out on my old Cove Hummer.

    I've got an email into the Cdn distributor & a company in Vancouver that used to sell A2Z trying to find out where to get one, but haven't back from either yet.
    Craig let me know when you find out if this Cdn distributor still deals with A2Z....
    I need to convert my wifes KOna to disc ... she has the rear disc wheel already, just need the adapter.

    Denis

  12. #12
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    Yes, they do. I have one on order at a LBS on the NS, which arrived this week. Will be trying it on my frame tomorrow. Price is $60 Cdn.

  13. #13
    mtbr member
    Reputation: wickerman1's Avatar
    Join Date
    Dec 2003
    Posts
    3,268
    Quote Originally Posted by CraigH
    Yes, they do. I have one on order at a LBS on the NS, which arrived this week. Will be trying it on my frame tomorrow. Price is $60 Cdn.
    Which LBS? I'm working on the NS Monday and Tuesday.

  14. #14
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    North Shore Sports Swap at the bottom of Mtn Highway in NV.

    Apparently Atomic Bikes off Granville in Vancouver also sells A2Z parts.

  15. #15
    mtbr member
    Reputation: wickerman1's Avatar
    Join Date
    Dec 2003
    Posts
    3,268
    Quote Originally Posted by CraigH
    North Shore Sports Swap at the bottom of Mtn Highway in NV.

    Apparently Atomic Bikes off Granville in Vancouver also sells A2Z parts.
    Ok I know where that is... I rehearse in North Van on Hunter St which isnt far away... and I have a van too now( company van).

  16. #16
    Doesntplaywellwithmorons!
    Reputation: DeeEight's Avatar
    Join Date
    Jan 2004
    Posts
    10,761
    Quote Originally Posted by CraigH
    Thanks! That looks like it would work with the drop out on my old Cove Hummer.

    I've got an email into the Cdn distributor & a company in Vancouver that used to sell A2Z trying to find out where to get one, but haven't back from either yet.
    I've still got a few in stock. Sold one just a month ago as it happens.
    I don't post to generate business for myself or make like I'm better than sliced bread

  17. #17
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    I picked it up yesterday. They don't have any more in stock, but will order one for you if you want to try it on the frame.

    The outer plate will require about 5 min. work with a grinder to get it to clear the weld where the chainstay end is welded to the drop out.

    I can forward you the email with all the other BC dealers if you want it. Let me know.

  18. #18
    mtbr member
    Reputation: wickerman1's Avatar
    Join Date
    Dec 2003
    Posts
    3,268
    Quote Originally Posted by CraigH
    I picked it up yesterday. They don't have any more in stock, but will order one for you if you want to try it on the frame.

    The outer plate will require about 5 min. work with a grider to get it to clear the weld where the chainstay end is welded to the drop out.

    I can forward you the email with all the other BC dealers if you want it. Let me know.
    Yeah sure Im up for it... BTW what's a "Grider'?

  19. #19
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    Adapter is no longer listed on the page above, only on their old page:
    http://www.a2zcomponents.com/OLD-web/Adapter/adap01.htm

    Maybe A2Z has discontinued this adapter?

    Was just talking to co-worker about this part.

  20. #20
    ...idios...
    Reputation: SteveUK's Avatar
    Join Date
    Apr 2006
    Posts
    5,662
    Hong Kong Bikeshop has these adaptors.
    Peace,
    Steve

    What use is a philosopher who doesn't hurt anybody's feelings? -
    Diogenes


  21. #21
    mtbr member
    Reputation:
    Join Date
    Jun 2007
    Posts
    83

    A2Z universal brake adaptor!

    Great posts! Love the pictures! I just purchased one of the adaptors for my old Trek Y-22. Found it on ebay and the guy has a few of them, so if your looking his seller name is: discbrakeadapters he had them reasonably priced for $39 and thats with shipping. Looking forward to giving it a try. Will try and post some pictures when im done. Thanks

  22. #22
    mtbr member
    Reputation:
    Join Date
    Feb 2004
    Posts
    195
    Quote Originally Posted by zburt
    Great posts! Love the pictures! I just purchased one of the adaptors for my old Trek Y-22. Found it on ebay and the guy has a few of them, so if your looking his seller name is: discbrakeadapters he had them reasonably priced for $39 and thats with shipping. Looking forward to giving it a try. Will try and post some pictures when im done. Thanks
    did that adaptor work on your trek y-22?

  23. #23
    Riding or Fishing
    Reputation: musky's Avatar
    Join Date
    Jul 2007
    Posts
    246
    http://cgi.ebay.com/A2Z-Universal-Re...742.m153.l1262
    Ships out of Toronto. I've picked up a few things from them before with no issues at all.
    Just thought I'd share.

  24. #24
    mtbr member
    Reputation:
    Join Date
    Feb 2008
    Posts
    4,010
    Didn't know about this part.Thanks for the tip.

  25. #25
    mtbr member
    Reputation:
    Join Date
    Feb 2008
    Posts
    4,010
    Brake Therapy also makes a part for this (was talked about on the forums)

  26. #26
    mtbr member
    Reputation:
    Join Date
    Jun 2007
    Posts
    83
    The adaptor would have worked, but needed to be modified a little. I choose to go another way. I used the A2z adaptor but really really modified it and had it welded to the frame. And it works fantastic! Rode off road through some very technical trails for every weekend for 2 months without even a hiccup! I'm using a hydraulic 160mm rotor on the adaptor. Have to say it transformed by old bike into a new great stopping machine Goodluck!

  27. #27
    mtbr member
    Reputation: RS VR6's Avatar
    Join Date
    Mar 2007
    Posts
    2,909
    Has anyone done this recently?

  28. #28
    mtbr member
    Reputation:
    Join Date
    Jun 2007
    Posts
    83
    Well it was only about 6 months ago I did this!

  29. #29
    mtbr member
    Reputation: RS VR6's Avatar
    Join Date
    Mar 2007
    Posts
    2,909
    Pics...please?

    Wondering if it'll work on my Homegrown.

  30. #30
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    Quote Originally Posted by RS VR6
    Has anyone done this recently?
    Still using the one on my Cove Hummer, no problems at all.

  31. #31
    mtbr member
    Reputation:
    Join Date
    Jan 2007
    Posts
    21
    Does anyone know where I could score one of these still? I have a really old frame w/o canti bosses (so no Therapy adapter for me) that I'd like to run disc on. The A2Z adapter on the other hand doesn't depend on a canti boss, so it would be IDEAL.

  32. #32
    mtbr member
    Reputation:
    Join Date
    Jan 2008
    Posts
    148

  33. #33
    What could go wrong ...
    Reputation: Zoke2's Avatar
    Join Date
    Nov 2007
    Posts
    1,996
    I ran one of these on my GT RTS for 6 or 7 years and it fit right on with no modifications (of course the RTS has very large flat dropouts) and it worked perfectly no squeals or anything. now that the RTS is wall art im going to put it on my GT Zaskar as soon as I get another set of disc wheels
    I used to ride to Win ... Now I ride to Grin

    While my guitar gently weeps, my bike sits there mocking me

  34. #34
    Tear it all out! SuperModerator
    Reputation: CraigH's Avatar
    Join Date
    Dec 2003
    Posts
    7,755
    A2Z still has the adapter listed on their old site, maybe contact them to see if they still have them for sale, or any dealers that still might have some?
    http://www.a2zcomponents.com/OLD-web/Adapter/adap01.htm

  35. #35
    mtbr member
    Reputation: wheelbender6's Avatar
    Join Date
    Sep 2007
    Posts
    305
    The adapter works well on my Diamondback Voyager. Bolted on. No mods required.
    "I don't suffer from insanity!I rather enjoy it."

  36. #36
    mtbr member
    Reputation:
    Join Date
    Jan 2004
    Posts
    2,529
    The OP of this thread wanted to put them on an old ti HT. That's exactly what i wanted to try on my Moots YBB.

    It seems many of you had good luck with this. No slipping of the adapter? It just seems that it might slip a bit due to the tremendous torque produced from disc brakes or pop right off.
    We Ride In God's Country!

  37. #37
    nnn
    nnn is offline
    mtbr member
    Reputation: nnn's Avatar
    Join Date
    Feb 2005
    Posts
    799
    I doubt it, afterall quick release wheels rely on clamping force as well, and a much smaller areaof contact whilst having to absorb all jumping and landing forces so it's obviously fine.
    "Life begins at 140" Richard Burns
    http://www.nikolay-k.com

  38. #38
    mtbr member
    Reputation: bvibert's Avatar
    Join Date
    Mar 2006
    Posts
    973
    Quote Originally Posted by CraigH
    A2Z still has the adapter listed on their old site, maybe contact them to see if they still have them for sale, or any dealers that still might have some?
    http://www.a2zcomponents.com/OLD-web/Adapter/adap01.htm
    It's still on their current website, you just have to click on the Others link on the page you originally linked to. They're using frames so you can't link directly to the whole page.

    http://www.a2zcomponents.com/Adapter/Others.asp

  39. #39
    mtbr member
    Reputation: wheelbender6's Avatar
    Join Date
    Sep 2007
    Posts
    305
    This link shows a frame adapter with a rod that bolts to the canti boss.
    http://www.bikeparts.com/productinfo...357619194.html
    It is pretty much impossible for one of these to slip from brake torque. Unless you are a downhiller or do heavy freeride, I think the A2Z (pricepoint.com) will work fine if you tighten the adapter bolts regularly.
    "I don't suffer from insanity!I rather enjoy it."

  40. #40
    mtbr member
    Reputation:
    Join Date
    Jan 2008
    Posts
    148
    Quote Originally Posted by myitch
    The OP of this thread wanted to put them on an old ti HT. That's exactly what i wanted to try on my Moots YBB.

    It seems many of you had good luck with this. No slipping of the adapter? It just seems that it might slip a bit due to the tremendous torque produced from disc brakes or pop right off.
    The instructions recommend to check the bolts every ride. Some riders have said that there is slight movement (a few mm at most), but I haven't had it personally because I tightened and loctited the bolts pretty good. I do check (for peace of mind) after about 2-4 rides but even that will probably stretch out since I haven't needed to tighten anymore.

    As for popping off, if it does you have larger problems...like missing your rear wheel since the adapter is held in part with the rear skewer. Depending on the position of the welds on your dropouts, you may have to modify slightly to fit. I did and after it was all said and done it fit like it was made for the bike.

  41. #41
    mtbr member
    Reputation: homegrown_xt's Avatar
    Join Date
    Jun 2008
    Posts
    90
    I just put one of the a2z adapter on today. I am using a set of hayes mechanical disc brakes that I have had sitting around and put them on my old '97 schwinn homegrown. I am using the brakes with xt vbrake levers
    It took a little while to line up but I finally got it and they work great. I took the two little plastic chocks out of the xt vbrake levers and that really boosted up the power of the disc brakes.
    The pads aren't broken in yet but once they are they should really stop well just by looking crosseyed at the brake levers.;-)

    ken

  42. #42
    mtbr member
    Reputation:
    Join Date
    Aug 2008
    Posts
    16
    I've got one of these on my 99 GT Zaskar. Ive run BB5s and now XTR hydraulics without a problem. The dropout on my frame is not completely flat so i had to cut up the adapter a little bit to make it fit, not a huge problem.

    Here is a pic of the setup:

  43. #43
    mtbr member
    Reputation:
    Join Date
    Sep 2008
    Posts
    3
    What is a flat dropout? Do you mean Horizontal like a track bike?

  44. #44
    mtbr member
    Reputation: wheelbender6's Avatar
    Join Date
    Sep 2007
    Posts
    305
    Flat means the outside surface of the dropout it flat. Ibis, some boutique bikes and the above posted GT have an eyebrow or raised area on the dropout.
    "I don't suffer from insanity!I rather enjoy it."

  45. #45
    mtbr member
    Reputation:
    Join Date
    Sep 2008
    Posts
    3

    Great

    Thanks for the clarification and quick response. I was hoping that would be the case. I have ordered one for my 1998 Litespeed Owl Hollow. If you have a 2000 on up model you can order a very clean looking disc mount adapter directly from them. I will post again to let anyone one know what the result is. I ordered the A2Z disc mount adapter for just under forty bucks from bicyclesupply.com Hope it works!
    Diggety

  46. #46
    mtbr member
    Reputation:
    Join Date
    May 2009
    Posts
    3
    A2Z Rear Disc Brake Frame Adapter costs $35+shipping that I think is totally over priced

  47. #47
    It's all ball bearings
    Reputation: gopriest31's Avatar
    Join Date
    Sep 2004
    Posts
    219
    I was surprised that this thread is still on here. I ended up using mine on my wife's Specialized Hard Rock. It works ok, but I had to add washers in it to compensate for the dropout thickness. I also added 2 safety wire twists through the aluminum piece that rides on the frame to keep it in place if you apply the brake while backing (holds the whole deal in place) otherwise it tended to wind up with the rear wheel when braking backward

    In hindsight, I wouldn't mess with it again. I use way more front brake than rear brake on the trails anyway, and the whole deal looks kinda shabby when all is said and done (in my opinion anyway) Too much hassle and bulk for a minimal improvement in my case.. I would have stuck with a front disc/ rear v brake set up if I were to do it again (not to mention my wife never rides the bike anyway ... haha )

    my .02 ... Good luck !

  48. #48
    mtbr member
    Reputation: Fuzz541's Avatar
    Join Date
    Jul 2006
    Posts
    320
    Bump up the jam, bump it up . . .




    Looking for one of these for a friend. Anybody have one gathering dust? I'd also consider a Specialized Shark Fin adapter or a cheap Brake Therapy. It's for a 13yo kid on a 2000 FSR XC Comp.

    I'm also thinking about making an adapter out of some solid square alu stock from Tractor Supply or the hardware store. Bolt it or somehow affix it to the same hole on the seat stay that the Shark Fin would use, bolt it through the top to the v-brake boss, tap the bottom end for the caliper and use standard adapters and/or a few shims as necessary.

    PM if you have something to sell. Thanks.

    - Andy
    Looking for the person who tapped and pinned a set of Shimano A530 pedals - can't find the thread! Shoot me a PM. Thanks!

  49. #49
    It's all ball bearings
    Reputation: gopriest31's Avatar
    Join Date
    Sep 2004
    Posts
    219

    still available from a2z


  50. #50
    Live 2 Ride
    Reputation: Kona0197's Avatar
    Join Date
    Oct 2004
    Posts
    5,962
    Yes but A2Z doesn't offer a way to buy it online. I guess you have to call them.
    My Bike: '15 Trek FX 7.2
    My Blog: http://http://kona0197.wordpress.com/

Page 1 of 3 1 2 3 LastLast

Similar Threads

  1. 74mm-51mm disc brake mount adapter?
    By ZONK in forum General Discussion
    Replies: 6
    Last Post: 01-28-2005, 07:46 PM
  2. Anyone using CTS or a2z disk adapter?
    By fallzboater in forum Brake Time
    Replies: 0
    Last Post: 10-07-2004, 07:44 AM
  3. Hayes (Manitou) to IS disk brake adapter
    By Lamerider in forum Passion
    Replies: 3
    Last Post: 08-30-2004, 01:31 PM
  4. IS disc brake adapter for Trek w/ 43mm? dropout mount
    By Adirondack Blues in forum Brake Time
    Replies: 3
    Last Post: 03-10-2004, 05:34 PM

Posting Permissions

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