Syncros Crank-o-Matic Crank Bolt Older Cranks

2.59/5 (17 Reviews)
Weight : 18g/pr MSRP : $25.00


Product Description

  • It’s more than weight. Cold-rolled threads make these Ti6-4 bolts just as tough as steel. Only at 1/2 the weight.
  • They’re lubricated. Tiodize II and TioLube 40 inpregnates the metal, preventing galling and seizing associated with titanium bottom brackets spindles.
  • A 6mm Allen key. That and a beer is all it takes to install your crank.


  • Review Options:  Sorted by Latest Review | Sort by Best Rating

    Reviews 1 - 15 (17 Reviews Total) | Next 15

    User Reviews

    Overall Rating:2
    Value Rating:1
    Submitted by Dave Weber a Cross Country Rider from Minneapolis, MN, USA

    Date Reviewed: April 20, 2002

    Strengths:    none really...could possibly be a strength is you were out in the wilderness w/out a crank extractor and you had a reason to remove your cranks.

    Weaknesses:    You should not have to take off your cranks very often at all. Assuming that the cranks are on tight, I just don't think that this hardware is durable enough to withstand the torque over time. It might be good a few times, but who really needs it??

    Bottom Line:   
    Add 20 grams to your bike and make it SOLID with steel crank bolts and steel chainring bolts. If you have that, you won't need to remove your cranks in the middle of nowhere--the only potential situation where these Crank O Matics would benefit you. I agree with the other testimonials that Syncros is kinda lame when it comes to Cust. Serv....they are up in Canada and it is always some cock 'n' bull story about the mail time, shipping costs...I would use their seatpost and that is about it.

    Expand full review >>

    Favorite Trail:   Downtown in Mammoth Lakes

    Duration Product Used:   1 Year

    Price Paid:    $20.00

    Purchased At:   can't remember

    Similar Products Used:   Nothing like this..used some TNT aluminum crank and chainring bolts awhile ago (joke)

    Bike Setup:   Yeti AS-3, Halson Fork, WTB, etc...

    Overall Rating:4
    Value Rating:5
    Submitted by carlos a Cross Country Rider from San Antonio, Texas

    Date Reviewed: May 5, 2000

    Strengths:    One hex key installed and removes crank (no more crank puller).

    Light.

    Won't rust.



    Weaknesses:    Won't work if you don't read the instructions!

    Bottom Line:   
    If you read the instructions you'll notice that the Crank-O-Matics require a steel bolt for initial installation. Ti prep is needed on BOTH brass washers to prevent seizing and on the bolt threads and edges. A thin application of Ti prep is also a good idea for the spindle.

    I've had no problems aside from the break in period within the first 50 miles. A good product all around.

    I'm not sure what's up with the Syncros' customer service but I've called recently and asked for stickers for my fork (free advertising, no?) and never got a reply ot the stickers. And judging from the reveiws below a few other folks haven't had much luck either.

    Sounds like another case of corporate crappery. Thanks GT/Riteway.

    Expand full review >>

    Favorite Trail:   Flat Creek

    Duration Product Used:   2 Years

    Similar Products Used:   regular steel bolts

    Bike Setup:   98 Litespeed Obed/98 Just SL/Syncros BB, cranks, rings, seatpost, stem, and QRs.

    Overall Rating:3
    Submitted by Tony a cross-country rider from CA

    Date Reviewed: July 8, 1998

    Bottom Line:   

    Hey , never had problems with my bolts. After reading these reviews I won't give
    up five chili's. Synchros should take care of their customers better, in my dealing with this company on other products I know that they are a bunch of
    hard heads...but that will come around to bite them, in the meantime if you
    know your stuff you shouldn't have trouble with the crank-o-matics

    Overall Rating:1
    Submitted by Bob Bonner a cross-country rider from Toronto, Canada

    Date Reviewed: July 4, 1998

    Bottom Line:   


    My disappointment with these things is rivaled only by my disappointment with Syncros. The retainer ring on my left crankarm has shattered and I may not be able to salvage the crank arm. When I e-mailed Syncros for advise they told em to take it to a bike store for repair. Its their ring that exploded adn possibly destroyed my crank but do you think they would bother to help out. DO NOT BUY THESE BOLTS!!!!!!

    Overall Rating:1
    Submitted by Stuart Hodgson a weekend warrior from England

    Date Reviewed: May 6, 1998

    Bottom Line:   


    like too many other people on this page i have found that the crank bolts them sleves are good, that is to say that the titanium fastener bolt does what it is supposed to do. this is not the problem, the problem comes when the removal of the bolt is done to remove the crank arm at the same time. the outer bolt that srews in to the crank arm shatterd on the first removal of the drive side crank. i am also dissatisied at the fact that Syncros's warenty does no cover threaded items, so getting hold of another pair of bots is not an easy task. However this is a shame as the cranks that i also purchased from them are perfectly fine.

    Overall Rating:1
    Submitted by Mitchel Bynum a cross-country rider from TX

    Date Reviewed: February 4, 1998

    Bottom Line:   


    I've been very dissatisfied with these. The outer retainer that allows the crank to be removed shattered on the first removal attempt. Removing the left over part damaged my crank. What this means is that you can't really tighten the cranks and expect the bolts to work. Syncros is very reluctant to deal with consumers directly. Too bad, most of there products seems to be good.

    Overall Rating:4
    Submitted by Eric A. a downhiller from Hull, Québec, Canada.

    Date Reviewed: December 24, 1997

    Bottom Line:   


    Simply the easiest to use and coolest crank bolts on the market today. Light, simple and solid, it's one thing I can no longer do without. All you need to extract your crank arms is a 5mm allen key and bingo!! you take your cranks off on the trail in a second. Chain suck can be fixed in a snap, so does noisy cranks. Just take them off and add a bit of grease (if you don't carry grease with you just unscrew one of your fork caps and take a dab of grease on the M.C.U. stack )and you get rid of the anoying noise.

    Overall Rating:1
    Submitted by david a weekend warrior from The Big Apple

    Date Reviewed: December 24, 1997

    Bottom Line:   


    I purchased these bolt to have easier access to my BB and cleanings.
    After installation (on the same day), these things seized up so bad
    the inner bolt cracked through the outer titanium ring. It is a pain
    in the ass to pull suckers out. I found out this is not an isolated
    incident. I'm getting them exchanged(if I can get them out!) but I'm
    very hesitant.

    Overall Rating:1
    Submitted by Mike a cross-country rider from Palmdale, CA

    Date Reviewed: August 1, 1997

    Bottom Line:   


    The large bronze washers get seriously thrashed after a few removals and installations. It would be nice to be able to get some fresh washers to replace the warped old ones. I have E-mailed Syncros to find out if they could just sell me some new ones. They just say, get them at a bike shop. I then E-mail them again and tell them no one around here has them. They give me the exact same answer. I hate to say it because I really have liked Syncros products, but this kind of attitude by Syncros shows me their true colors. In the future, I most likely will seek out the companies that truly appreciate their customers.

    Overall Rating:5
    Submitted by Cody Peterson a racer from Ketchum, ID

    Date Reviewed: July 11, 1997

    Bottom Line:   


    My crank-o-matics are light and trick. They work awsome. You guys whose don't work it is oporator error. Install them right. Read the instructions. Have a bike shop do them. The shop I work at knows how your shop might too. Do them right and they will be awsome.

    Overall Rating:1
    Submitted by jerry a cross-country rider from Corvallis, Or

    Date Reviewed: July 7, 1997

    Bottom Line:   


    This is my second review, so read below, too! I extracted my drive side crank arm with no problems, just back the bolt out and off came the crank, wellllll, not so with the other arm. The aluminum collar shattered so I had to use a chisel and hammer to back it out on one of the sharp edges. So, if you use these, remove your cranks and clean the spindle and crank mating surfaces regularly or your experience may be like mine.

    Overall Rating:5
    Submitted by Eric Greene a weekend warrior from Ottawa, Ontario, Canada

    Date Reviewed: March 25, 1997

    Bottom Line:   


    Look cool, are light and best yet the with not rust. A must have..

    Overall Rating:4
    Submitted by jerry a cross-country rider from Corvallis, Or

    Date Reviewed: February 5, 1997

    Bottom Line:   


    I installed these with a Race Face crankset, followed the directions exactly, and have had no problems with loosening. I have as yet to extract my crank arms with these bolts so maybe my review would change.

    Overall Rating:5
    Submitted by John Wolters a cross-country rider from The Netherlands, Europe

    Date Reviewed: November 11, 1996

    Bottom Line:   


    Good working 'tool', never had any problems with it. Just make shure that you follow the installation instructions. These crank-o-matics has made it possible for me to get rid of some serious chain suck where you really couldn't get the chain out anymore.

    Overall Rating:1
    Submitted by F. DAUGHERTY a cross-country rider from HUNTINGTON BEACH, CA

    Date Reviewed: October 6, 1996

    Bottom Line:   


    Nice idea, pretty cool with it's sort of techno look, but broke the aluminum threaded carrier trying to extract the ring side bolt. I think it was about the 3rd or 4th removal. Went back to steel. Can save weight some other way.

    Reviews 1 - 15 (17 Reviews Total) | Next 15

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