Let's offroad / mountain bike / mtb / ride dirt

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  • Would just need forks, tyres and then the midge bars... I have everything else.

    Would be singlespeed also.

  • Ti bike with v brakes? I have seen you out there before.

  • That was the bike, but it was the first time out. Previously I was on a Klein with cantis, but the frame cracked at the seatpost.

  • @davros Who did you get it from? Am sure I have seen the bike before, it looked familiar.

  • No, you wouldn't of seen it, I bought it from RB, it came up from Bristol, sat on my wall for 9 months till I got all the parts. Other than a lap of Richmond Park and a ride to Brighton off road and a trip up to Putney, it has never been out

  • Are you in Richmond?

  • Putney. If you have ever seen Merlins or Kleins through the park towards Richmond/Surrey, that would be me and my girlfriend

  • So after riding a properly sized frame the other week, I've realised it's time to swap out my current frame. For a relative noob, would a 456 be a good buy or splurge on something like a Soul?

  • What are you planning on swapping from?

  • 'dale trail SL4.

  • The 456 might feel a bit slack & heavy after the dale. The Soul is a lovely frame, but quite expensive.

    It's worth having a look at these two as well:

    Pipedream Sirius & Scion or Dialled Bikes Prince Albert

    Both more nimble in terms of their geometry and with nicer tubing than the 456 and cheaper than the Soul.

  • Looks like @gabes made it around the Bearbones in one piece! Sounds like the route was pretty tough this year, reports of multiple two-hour boggy/tussocky hike-a-bike sections... Well done on the blue badge!

  • Well done on the blue badge!

    ??

  • I'd be eligible for one of these if I'd ridden

  • I was afraid of that.
    The reason I lumped the 456 in there is to save cash for a wheelset. Something I know makes some difference.
    Bearing in mind my skillset generally means 'point the bike there and hold on'. I don't know if I'd recognize the difference much in terms of speed improvement. Saying that however, I did get to ride an unknown carbon hardtail which was utter bazonks to throw down.

    I'll dig more into the Scion. £250 for an 853 would be rude to refuse.

  • I suspect the 456 would encourage you to buy a longer travel fork, which in turn might cost you even more :-)

  • Will bring falcon next time

  • Yah...just realised I run a 120mm ...and 456's looove running on 140+.
    Most of what I'm looking into seems to run best at 130+. This is quickly turning into a new build....

  • I've found my on-one frames to be built down to a price, not up to a standard. DN6 tubes are just scaffolding and their paint is a complete joke! Plus those seat stays are almost 100% effective at sending every single trail bump right up your rear end.

    The Scion looks a real bargain to me; better tubes, design, paint, dropouts and, I'd guess, build. Go for it. I can't figure why PD don't do the same frame in 650+29er !?

  • The 456 might feel a bit slack & heavy after the dale. The Soul is a lovely frame, but quite expensive.

    It's worth having a look at these two as well:

    Pipedream Sirius & Scion or Dialled Bikes Prince Albert

    Both more nimble in terms of their geometry and with nicer tubing than the 456 and cheaper than the Soul.

    @BareNecessities

    Not to be a chuffnubbin or anything, but the Dialled PA is 'Reynolds 725' steel.
    The On One 456 is 'DN6' Steel (named after On-One's postcode)

    No matter what the name is, both of these are exactly the same, 4130 (this is the industry standard AISI designation) double butted steel.

    http://www.finishing.com/323/64.shtml

    http://www.on-one.co.uk/i/q/FROO456E2/on-one-456-evo2-frame

    http://reynoldstechnology.biz/assets/pdf/rtl_steel_alloys_extract.pdf

    Interestingly (ok, not very) scroll down to the bottom of the Reynolds info and they have a stiffness chart, all of the steels are shown to be stiffer than the 6061 (ok, so there's 7005 as well but I didn't notice any info on that) which is the regular Alu used in bike frames. And Aluminium frames get slated for being 'stiff' and steel is supposed to be 'compliant'.

    It's all a load of old trousers, but @Chak I found my On-One seemed to feel larger than it's 16" frame size should have.

    Good Luck

  • Whoops, I appear to be stuck in a timewarp and hadn't noticed that there wasn't an 853 version of the Prince Albert anymore :-/

  • Faark...juuust missed out on an 853 Prince Albert from bygone days for £160.

  • *Googles chuffnubbin *

  • Interestingly (ok, not very) scroll down to the bottom of the Reynolds info and they have a stiffness chart, all of the steels are shown to be stiffer than the 6061 (ok, so there's 7005 as well but I didn't notice any info on that) which is the regular Alu used in bike frames. And Aluminium frames get slated for being 'stiff' and steel is supposed to be 'compliant'.

    All steels have essentially the same stiffness, all aluminium alloys have essentially the same stiffness too, which is around a third of that of steel. The difference isn't the material, but the disposition of it. To make a steel frame strong enough, you can use skinny tubes. To make an aluminium frame strong enough, you need about 3 times as much volume of metal, so you dispose it in large diameter tubes; the problem with all tubes is buckling, and that's a function of the ratio of diameter to wall thickness. To optimise your structure, you go close to the buckling limit as that places the material as far as possible from the axis. The stiffness of a tube is proportional to the fourth power of its diameter. When you shake all the maths out of that, it turns out that if you use the smallest amount of material needed to hit your strength target, a structure made from aluminium turns out stiffer than one made of steel, even though the material itself is much less stiff.

  • Any issue with putting a 26inch front wheel (disc) on a bike made for 29ers? I realise it will drop the front a tiny amount, but compared to the suspension it'll be a negligible change right?

    (I buckled the front at swinley on Saturday and have basicly everything lying around to build up a 26)

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Let's offroad / mountain bike / mtb / ride dirt

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