Help me choose a fork for an unbuilt bike

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  • So, essentially, after about two years on my current bamboo bike, I fancy making a new lighter stiffer shinier generally whizzier one. Before I design the frame geometry, I'm trying to decide what fork to use. I have some funny requirements so it's a bit tricky just to use google, but it's the kind of thing where human intelligence should sort it pretty quickly. [edit - long and boring post, see my next one for the tl;dr summary]

    At the moment, I fancy carbon fibre, but I still don't know whether this is a good idea. I use the bike for everything, but realistically use it most of the time commuting and getting around town, with occasional light off-road stuff. Maybe a lightweight metal one of some description would be nearly as good and cheaper.

    Because I'm building the frame from scratch, axle-crown distance and rake is not such a big deal because I can adjust the headtube height and angle to get the trail I want. Though nothing stupid that will limit my choice in future.

    I use a front hub brake at the moment but can see myself switching to disc to save a bit more weight, so a disc specific fork is best (even if I'm still using the hub brake, I don't trust a non-disc fork not to do horrid things when I brake sharply).

    I don't like the look of forks where the crown is u-shaped and blends into the legs (whatever that's called); something that has a flatter top (like classic steel road forks, or most MTB forks), or v-shaped (like most carbon road forks) is more my kind of thing. Also I must be able to run a full mudguard, with clearance for 35mm slicks.

    Lastly, cheapness is of the essence. Say £150 max, cheaper would be much better, though that limits me greatly on the carbon front. I'm considering the 26in carboncycles.cc MTB forks, though they still have quite a long A-C length which will limit my choices in future...

    Anyone got any ideas? I'll post things that I find as I come up with them.

    Cheers :)
    Ben

  • tl;dr because that was all a bit long-winded -

    I want a lightweight but not flimsy 1 1/8in steerer fork, axle-crown probably no more than 410mm, with mudguard eyelets, room for a 35c tyre, and ideally disc brake fittings.

    I've had another look at the Exotic / carboncycles.cc forks and they don't have eyelets as I thought they did, so they're out. So far the nearest I've got are these, having relaxed my distaste for monocoque forks...

    Kinesis DC37, £120ish: http://www.winstanleysbikes.co.uk/product/51770/Kinesis_DC37_Carbon_Forks
    Trigon MC01 (loads on ebay), £110ish, ugly as sin and big A-C.
    Spot carbon fork: http://spotbrand.com/bikes/product-page/forks/. Can't find them in the UK but they are lovely looking, bit dear though. [ah bugger, sidewayscycles sell them but they're £199]

  • No-one got any bright ideas?

  • youre lucky if his lot keeps quiet.

    #stillholdingagrudge

  • I was looking for some carbon disc-specific forks with mudguard holes, not many options that I could find. There's a german website called python, or venom, or something like that which has some for around £100

  • Cheers for the tipoff - my German google-fu has failed me but on the bright side I found another potential option:

    http://www.mob-bikes.de/quantec-cross-gabel/1280-quantec-carbon-crossgabel-fur-scheibenbremse.html

    It says it's designed for integrated headsets, which confuse me. Am I right in thinking that that's just a styling matter (ie. it has a larger top to make a smooth transition into a larger headtube), and a normal non-integrated 1 1/8in headset would do as well?

  • Cheers for the tipoff - my German google-fu has failed me but on the bright side I found another potential option:

    http://www.mob-bikes.de/quantec-cross-gabel/1280-quantec-carbon-crossgabel-fur-scheibenbremse.html

    It says it's designed for integrated headsets, which confuse me. Am I right in thinking that that's just a styling matter (ie. it has a larger top to make a smooth transition into a larger headtube), and a normal non-integrated 1 1/8in headset would do as well?

    Looks like a standard 1 1/8" threadless steer-tube--- and not the oddball 1 1/4"-1 1/8" that is becoming popular. The headtubes might have been pre-reemed for hiddenset headsets-- what they mean, I think, by integrated-- but hard to tell. Normally its the frame (headtube) that determines if hidden (Dia-Compe or Campa System) or not.
    Note: 1) Its an alu tube and not a full carbon fork. 2) At 700g its not lightweight

  • Ah good catch on the weight. I'm a bit (irrationally?) afraid of carbon steerers, maybe I just need to read up more on them to put my mind at rest, plus get a torque wrench. What's the deal with the tapered steerer? Find it hard to believe that there's much of a benefit... tapered tubes should be stiffer and weigh less, but I bet you have to make the taper section thicker than it would be otherwise...

    Another option is a Bontrager Satellite Elite fork, but I can't find anywhere that still sells them. Not mega light either I expect. Also, I've realised that the Trigon fork I mentioned doesn't have eyelets, which is a shame cos someone's selling one for £60...

    Alternatively there's always something like this, aluminium but pretty light considering the price (if you believe the manufacturer's specs, haven't checked them out). Expect there's probably loads of options if I drop the carbon plan: http://www.ebay.co.uk/itm/Mosso-26-MTB-Aluminium-Disc-Brake-Rigid-Straight-Blade-Fork-Black-Only-/110989447430?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item19d77c9106

  • use p clips for eyelets then you can have any fork you like

  • or use raceblades

  • P clips are a bit messy plus it's not much fun clamping things to CF, though they're an option if I get totally stuck. Raceblades are no good for me, I need the option of running fat tyres and even the XL ones only go up to 23 (?).

  • I've got xls and running 28s, they're meant to take 35s

  • Oh really? OK, the site I saw probably just had the details of different models muddled up, thanks for letting me know. It did seem like a pretty stupidly small size for an 'XL'.

  • I checked the leaflet that came with the raceblades and the xls are 23s to 32s

  • http://www.carboncycles.cc/?p=197

    29er, currently reduced to £114 appx, as previously mentioned, really does tick all the boxes

  • 'cept the axle-crown is about 6cm too long on suspension-corrected 29er forks, and it doesn't have eyelets ;)

  • FWIW, I think I've decided to go for the Kinesis DC37, or maybe the DC19 if I can find one...

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Help me choose a fork for an unbuilt bike

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