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  1. #1
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    Formula Oro K18 or K24

    I am looking to upgrade from the Avid BB7s on my Rush to a set of hydraulic brakes. The Formula Oro series have really caught my eye with amazing reviews. My one question is if the K24s are worth the money over the K18s. Thanks.
    "Don't take life too serious. You'll never get out alive."

  2. #2
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    I don't think that they are worth the extra cash. The k18's look better because they are black. the only difference is the K24 have the FCS adjustment that allow you to adjust how far the lever comes back before it contacts the pads. If this is a major concern you can always add the FCS to your K18 brakes for around $16-$20. Formula sells the part and since the brakes are identical other than this I really don't see shelling out $100 more.

  3. #3
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    Well, I tried to order the K18s this afternoon, but the suplier is all out. One other question for those who run the Oros... can I get away with running my Avid rotors and adaptor brackets? Just trying to keep this conversion fairly cheap. Thanks
    "Don't take life too serious. You'll never get out alive."

  4. #4
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    bikeuphill9,
    Both of our main distributors current show that the K18 are in stock. You may want to have your shop double check that or if they are still having problems, have them give us a ring.


    Cheers,

    Chris Costello
    Formula Brake USA
    707.765.2770

  5. #5
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    is the FCS system just the 2mm hex adjustment screw on the back of the lever? or am i missing some part of it. I'm thinking i might try some K18's instead of the juicys i was thinking of going with...

  6. #6
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    Quote Originally Posted by Bryguy17
    is the FCS system just the 2mm hex adjustment screw on the back of the lever? or am i missing some part of it. I'm thinking i might try some K18's instead of the juicys i was thinking of going with...
    I haven't tried formula's (would love to) but am not thrilled with my j7's. I say fade the juicy's, go with the k18's.

  7. #7
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    No, the FCS is the black knob that rotates


  8. #8
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    oh ok, im thinking ill pick up a pair of k18's, then add the FCS if i need it

  9. #9
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    Well...we tried to order from BTI but the where out of the Oros and said they sold out quickly. Will try again this week.
    "Don't take life too serious. You'll never get out alive."

  10. #10
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    I bought a pair of K18s about two weeks ago and decided to save some cash over the K24. I'm 235lbs with my gear on and all I can say is unbelievable!!! The K18s stop like you can't imagine. I upgraded over my Hayes 9 and the difference is night and day. I've read some reviews that they are too powerful and they lack modulation (which is what I believe the K24 FCS adjustment might be able to provide) but I like my brakes to be a little grabby anyway.

    You won't be disappointed either way.

  11. #11
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    has anybody actually installed the parts for the FCS system onto a set of K18's? I'd like to gain some insight as to how to go about this

  12. #12
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    FCS kit

    Check the Formula website and they have the FDF instrunction manual on the brake lever. It has the blown out brake lever with parts dismantled. I don't know if this will be able to solve your question.

  13. #13
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    US site? right?

  14. #14
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    well, i looked at their site, and the exploded diagrams, but they werent much help. its hard to see the area that the FCS goes to in either of the manuals. just wondering if anybody has actually done this, cause i could see any manufacturer putting some slight difference in the casting just so people can't buy brakes for 100 cheaper and upgrade them for 20 bucks

  15. #15
    Buridan
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    bikeuphill9 asked a good question that's still unanswered:

    One other question for those who run the Oros... can I get away with running my Avid rotors and adaptor brackets?
    I'm also considering the K18s and would like to know if they are compatible with Shimano's centerlock rotors. I hope Formula Brake USA returns and can answer these queries, or anyone else for that matter...

  16. #16
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    Stevem9

    I can help with the Avid rotor question with Oro's. I installed K24's earlier this year with Avid Clean Sweep rotors. The Avid rotors were extremely noisy when dusty although they were quiet when wet. I then put on Oro rotors and they have been very quiet since. These are great brakes but I would not mix the Avid rotors with the Oro brakes.

  17. #17
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    Hi Guys,
    We do not recommend running any rotors other than the ones we specifically make for the Oro Brakes. In some cases other manufactures also use different size rotors than we do for certain applications. 180mm vs. 185mm and 200mm vs. 203mm. This means that their adapters cannot be used with our rotors.

    Regarding centerlock applications, we offer a centerlock adapter for our rotors if you are trying to mate them to a centerlock hub.

    Cheers,

    Chris Costello
    Formula Brake USA

  18. #18
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    Is there a reason why you did not make your brakes compatible with the industy standard rotors?

    Will your calipers work with other rotors if a standard adapter is used?

    I have multiple wheels and bikes with different brakes. Right now I can just swap as I need, but it would be a major pain if your calipers are not compatible.

    Thanks!

  19. #19
    Bodhisattva
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    Quote Originally Posted by Blue Shorts
    Is there a reason why you did not make your brakes compatible with the industy standard rotors?

    Will your calipers work with other rotors if a standard adapter is used?

    I have multiple wheels and bikes with different brakes. Right now I can just swap as I need, but it would be a major pain if your calipers are not compatible.
    BS...

    There are no industry standard rotor sizes.

    There are no industry standard adapters.

    The only standards are the IS tabs (which many of us despise and prefer post mount) and the rotor bolt spacing on the hubs.

    One may get lucky mixing & matching various brands but it's not safe to assume that this will hold true across all manufacturers.
    “Life is like riding a bicycle. To keep your balance, you must keep moving.”

    ― Albert Einstein

  20. #20
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    Quote Originally Posted by Blue Shorts
    Is there a reason why you did not make your brakes compatible with the industy standard rotors?

    Will your calipers work with other rotors if a standard adapter is used?

    I have multiple wheels and bikes with different brakes. Right now I can just swap as I need, but it would be a major pain if your calipers are not compatible.

    Thanks!
    Industry standard rotors? What is the "Industry Standard" for rotors, wasn't aware that there was one?

    Larry
    Mountain High Cyclery
    larry@mtnhighcyclery.com
    "It is inhumane, in my opinion, to force people who have a genuine medical need for coffee to wait in line behind people who apparently view it as some kind of recreational activity". - Dave Barry

  21. #21
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    Blue Shorts,
    We make space our rotor sizes apart in 20mm increments because it allows us to double up on adapter applications: a 160IS rear adapter is identical to a 180IS front, a 180IS rear is identical to a 200IS front and a 200IS rear is identical to 220IS front. This means less sku's, less parts for shops/distributors to stock and it also helps us reduce manufacturing costs so that we can be price competitive with product coming out of Asia. As the market changes and the 6" PM standard is more common on forks (and frames soon?) the value of this system will diminish. Also, the advent on 8" PM standard which requires a 203mm rotor and not a 200mm has also led us to offer 203mm rotors for this application

    The reason we do not recommend running other manufactures rotors is because we specifically design the hight of the braking track on the rotor to match the pad material height in our calipers; this insures optimal braking performance. It is for this reason, as well as liability, that you will be very hard pressed to find a manufacture who will give you their blessing to run rotors other then those specifically designed for their brakes.

    The success and failures of people mixing and matching rotors has been covered extensively on these boards if you need more information on the topic.

    Cheers,

    Chris Costello
    Formula Brake USA

  22. #22
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    Thank you Chris.
    Can you help about FDF on K18s?

  23. #23
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    Fdf?

  24. #24
    Bodhisattva
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    Chris,

    We appreciate the erudite explanation.

    Is there any word on Formula 2-piece rotors in terms of weight & availability....or is this just e-myth ?
    “Life is like riding a bicycle. To keep your balance, you must keep moving.”

    ― Albert Einstein

  25. #25
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    TSW,
    Regarding the 2pcs rotors: the wheels (or should I say rotors) are turning...that is about all I can say...

    Chris

  26. #26
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    Hey, wondering what the FCS adjuster actually adjusts, is it the distance you pull the lever without the calipers actually doing anything and then once you reach a certain distance the calipers engage with the disk? If so why would you want this, would this not be the same as having no "free" swing of the lever and just having the lever set closer to the bar? What do the K18's have, a preset "adjust" (whatever it adjusts) or minimum/maximum extremes of the K24's adjustability?
    Thanks in advance!

  27. #27
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    Hi Tiggles,
    Technically, the FCS adjuster changes how far the lever moves before it starts actuating the caliper pistons. The benefit of this is that it allows you to change the contact point of the lever blade (or the point of resistance) so that you can adjust the lever to your personal preference or even out the contact point between the front and rear brakes. It essentially is similar to a berrol adjuster on v or caliper brakes except that it does not impact the resting position of the pads.

    Cheers,

    Chris Costello
    Formula Brake USA

  28. #28
    lurkio
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    For oro brakes try Toby at propelbike.com he knows his stuff about set up and they are the best brakes i've ever used, bar none.

  29. #29
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    Thanks Chris, I understand what it is now, I used to think it actually changes the position of the pads.
    Also it's a great idea having manufacture representitves that know what they're talking about on these forums you've been a great help answering lots of questions!!

  30. #30
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    Quote Originally Posted by Formula Brake USA
    Fdf?
    FCS

  31. #31
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    Quote Originally Posted by Tkul
    FCS
    The FCS is retrofitable on to the K18. It slides over the MC piston and is held in place by a small wishbone which screws into the MC body. Note that the piston and FCS adjuster are keyed so that the FCS slides over it in the proper orientation...it is still possible to force it on in the incorrect position if you are not paying attention, so use brains instead of brawn.

    Since you have to remove the MC piston assembly when installing the FCS, it is a good idea to go ahead and replace the MC piston as well while you are in there, unless the brakes are brand new. Make sure to use silicone grease on the seals and o-rings during reassembly. DO NOT USE ANY GREASE OTHER THAN SILICON GREASE! Once you have the MC rebuilt, you should finish it off by bleeding to get some fresh fluid in there.

    To perform the FCS installation/piston replacement, you must have a solid technical understanding our brakes and the bleeding process which will follow. As always, do the job on a clean workbench with the brake off the bike and be sure to use the correct tools which include a torque wrench to ensure all fasteners are tightened properly.

    Thanks,

    Chris Costello
    Formula Brake USA

  32. #32
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    Quote Originally Posted by Ventanarama
    Industry standard rotors? What is the "Industry Standard" for rotors, wasn't aware that there was one?

    Larry
    Mountain High Cyclery
    larry@mtnhighcyclery.com
    Literal ninnys I was just curious.

    By industry standard I meant, for example.

    I can swap wheels and rotors on my bikes with no issues. Avid runs 6" rotors....hayes runs 6" rotors... Shimano runs 6" rotors. I can use my hayes and avid wheels (with 6" rotors) on any of my bikes.

    The Formula guy had a fine explanation about doubling up on adapters.

  33. #33
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    What does it look like?

    Is this the FCS adjuster, as an aftermarket kit that I can add to my K18's to allow me adjust like the K24? Anything missing, any special tools required and would it require me to rebleed the brakes e.t.c.?
    http://aebike.com/page.cfm?PageID=30...ils&sku=BR2576
    Attached Images Attached Images

  34. #34
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    Tiggles,
    Yes that is the FCS adjuster and as I stated earlier in this thread, it does require a bleed after installation.

    Thanks,

    Chris Costello

  35. #35
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    Anyone done this opertaion?
    Does it work?
    Is there any step by step instruction of making from k18 to k24?

  36. #36
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    WOW... talk about resurrecting an old thread...

    I also have a question regarding the K18. My frame only has IS mount for disc brakes.

    Am I right to understand that I can get a Formula 180mm Front IS adaptor to use as a 160mm Rear IS adpator so that I can mount the K18 calipers and 160mm rear discs on my IS mount frame?

    Thanks

  37. #37
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    +1 for Formula Reps posting, nice to have the industry mingling with their customers.

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