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    1. Beginners Trials Chat

      Just starting trials? Post here for advice on what trials bike to buy or basic moves

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    2. Trials Chat

      Bike Trials Discussion

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    3. Clubs and Competitions

      News, events and discussion.

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    4. Member Organised Rides

      Organise a ride or find out about a specific riding location.

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  2. Media

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    2. Bike Pictures

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  3. Classifieds

    1. For Sale

      A place to buy bike trials bits. Check out the traders' references and guidelines posted at the top of the forum before parting with any cash!

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    2. Wanted

      After something in particular? Post a thread in here you never know someone might have one sat in their shed.

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  4. Off Topic

    1. Chit Chat

      General chat in here - mind the bad language!

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    2. Bike Chat

      All non-trials cycling related chat.

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    3. Trials-Forum News, Updates & Suggestions

      Got an idea for how we can improve Trials-Forum? post it here!

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  • New Topics

  • Posts

    • Ali C
      Rear Hub Spacing Standards on New Frames

      By Ali C · Posted

      I disagree, I think there’s still some big changes that could happen…I can imagine carbon frames designed with some built in vertical flex that acts like a spring. I currently see trials as pole vaulting with a completely stiff pole, imagine how high you could jump if the bike could be slightly preloaded and then unleashed, like a more specifically designed tyre preload.   i do agree that all brands using 135mm hubs would be nice though!
    • alexmark
      Films!?

      By alexmark · Posted

      I love to watch films in my free time but due to my pending assignments I couldn't manage my time, it's been so long that I have not watched any movie/film but recently I found Nerdpapers they helped me a lot in completing my pending assignments now I can manage my time and can watch new films in my free time. By the Way my fav genre in films are action films like Mission Impossible, Extraction, Flash, The Batman.
    • craigjames
      Rear Hub Spacing Standards on New Frames

      By craigjames · Posted

      Rear rims have followed a fairly similar design for quite a while now. So unless something crazy and new comes along, I don't see that changing. Stick to 135mm it works for all different sized wheels, one size is cheaper for bike and component manufacturers, it also opens up the choice in aftermarket hubs. I think from a design and materials point of view, that we've reached peak trials bike, it will just be incremental improvements. Maybe more parts produced by additive manufacturing using exotic materials?
    • La Bourde
      Rear Hub Spacing Standards on New Frames

      By La Bourde · Posted

      Agree. I think it would be much better for all brands to stick on some standards. Just for the sake of completeness, the 142mm standard is the same as 135 regarding chain line or disc placement. They only add 3.5mm on each side to lead the hub within the frame rear ends (which is a nice feature, it makes installing the wheel easier, but far from necessary) Not sure a wider hub will increase a lot the stiffness of the wheel. I guess the current rims lack stiffness.  
    • craigjames
      Rear Hub Spacing Standards on New Frames

      By craigjames · Posted

      I don't think there is any logical need for the 120mm spacing used by Clean and Comas unless it's a chain line thing? My cynical mind tells me that they've probably done it to sell their proprietary hubs. Crewkerz use 135mm on their 20" bikes, as does my MK6 Echo 20". I run a hope Pro5 SS hub. So they've proven that a 135mm hub can play nicely with the chain line on a 20" bike. It's a bit like Jitsie and their 1-1 1/4" tapered headtubes, there's just no need! I don't see the need to move to 142mm on 26" bikes, I don't think it will bring any real world benefits to trials.  
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