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Black Matter Bikes Competition

EllTG

By EllTG
in Trials Chat

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Competition  

231 members have voted

  1. 1.

    • Yes
      76
    • No
      98

  2. 2.

    • Yes
      120
    • No
      55

  3. 3.

    • £100-£149
      66
    • £150-£199
      74
    • £200-£249
      33
    • £250-£299
      16
    • £300+
      13

  4. 4.

    • Yes
      98
    • No
      77

  5. 5.

    • Sub zero
      8
    • 0-10
      18
    • 10-20
      31
    • 20-30
      37
    • 30-40
      46
    • 40-50
      20
    • 50-60
      29
    • 60-80
      21
    • 80-100
      11
    • 100+
      10

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psycholist Trials Master

psycholist

Posted
Posted

Sounds interesting alright. A frame the chain can be removed on without a chain tool is pretty irrelevant as the process of getting the chain to the right length will lead to the potential for an unreliable join in the chain. If the frame is set up so the chainstay runs above or below the BB rather than through the middle of the chain there's an increase in the amount of material required for the frame and a decrease in strength as there will be an offset between the load going through the chainstay and the BB shell carrying it. If this is done by adding a join to the frame then it's more weight again and another point of failure.

A TGS 24" bike sounds interesting, mainly because the chainstay length/tyre clearance compromise made with 26" bikes isn't a problem in 24". Rather than a specifically TGS bike I reckon good all round trials geometry would be interesting in its own right rather than going straight to silly high BB's.

I for one will be very slow to trust any high EP rear hub that comes out, especially a lightweight one, until it's been bashed heavily by a lot of people with no problems for at least a year or two. The freewheel is one of the areas on a trials bike where absolute reliability is paramount, so the new hub must be a compromise free design. I'd like to see what a sprag clutch based hub would do, but I have my suspicions it might be a bit springy like roller clutch hubs. The other thing to note is that I can barely tell the difference in pickup between a 36 EP XTR hub and a 120 EP Superleggera hub on my XC bike, so once you hit in the region of 40 EP's it's an exercise in diminishing returns adding more.

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JT! Post Whore

JT!

Posted
Posted
Not true. We had the frame design long before the idea of using a belt drive. The belt drive supplier came to us and suggested that it would be an ideal vehicle to experiment with belt drives. As well as a trials frame, we also had a 24/26 Conspiracy dirt jump frame with the same concept, both of which ideas ,incidentally, have not been completely consigned to the scrap heap.

So, why spend time and money on a frame to try solve a problem that doesn't really exist?

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Mark W Post Whore

Mark W

Posted
Posted
The other thing to note is that I can barely tell the difference in pickup between a 36 EP XTR hub and a 120 EP Superleggera hub on my XC bike, so once you hit in the region of 40 EP's it's an exercise in diminishing returns adding more.

That's on an XC bike though. Trials is massively different. I went from a Dicta to an Eno, and the change in EPs meant I added a foot to my gaps instantly. I could suddenly make gaps I couldn't do before, and could control my bike a lot better, simply because I had a much more direct means of putting power down.

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Shaun H Too Much Spare Time

Shaun H

Posted
Posted (edited)

TGS 24

Many people will say they would buy one since it's not been done before but since there isn't the same sort of component support as there is with stock bikes I think it would struggle to become a popular option.

Lightweight high E.P. hub

I personally wouldn't go near this unless it had been through extensive physical model prototype testing.

Also of note; although FEA is a useful design refinement tool it isn't the be all and end all. Plus the majority of CAD jockeys don't really understand stress analysis. Do you mind telling us what qualifies you in mechanical design?

Price of hub

An irrelevant question at this stage. Without knowing further details of the hub it's impossible to place a value on it.

However if you could match Hope's quality and reliability I can see the hub going for around £200+ Any higher and people are likely to revert to the trusted CK hubs instead.

Chain-removal without breaking

Noone would buy a frame which makes massive compromises for the facilitation of a solution which solves a problem that doesn't trouble trials riders very often if ever.

So unless you've got something groundbreaking I'd shelve the idea.

BB rise

You've asked riders of all bike sizes, riding styles and riding types.

Go back and think about what you really want to know.

Edited by Shaun H
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Alex@Flawless Bikes Trials Master

Alex@Flawless Bikes

Posted
Posted (edited)
TGS 24

Many people will say they would buy one since it's not been done before but since there isn't the same sort of component support as there is with stock bikes I think it would struggle to become a popular option.

.

I beg to differ, which many stock parts fitting 24 and the new range of 24" components from Deng I would say there is an ever increasing component support range. Which means there shouldn't be a problem finding a range of parts.

Edited by E6v6i6l
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Shaun H Too Much Spare Time

Shaun H

Posted
Posted
I beg to differ, which many stock parts fitting 24 and the new range of 24" components from Deng I would say there is an ever increasing component support range. Which means there shouldn't be a problem finding a range of parts.

I agree, but you can't say that it will ever equal 26" diversity

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Matt Burrows Trials Elite

Matt Burrows

Posted
Posted
TGS 24

Many people will say they would buy one since it's not been done before but since there isn't the same sort of component support as there is with stock bikes I think it would struggle to become a popular option.

Lightweight high E.P. hub

I personally wouldn't go near this unless it had been through extensive physical model prototype testing.

Also of note; although FEA is a useful design refinement tool it isn't the be all and end all. Plus the majority of CAD jockeys don't really understand stress analysis. Do you mind telling us what qualifies you in mechanical design?

Price of hub

An irrelevant question at this stage. Without knowing further details of the hub it's impossible to place a value on it.

However if you could match Hope's quality and reliability I can see the hub going for around £200+ Any higher and people are likely to revert to the trusted CK hubs instead.

Chain-removal without breaking

Noone would buy a frame which makes massive compromises for the facilitation of a solution which solves a problem that doesn't trouble trials riders very often if ever.

So unless you've got something groundbreaking I'd shelve the idea.

BB rise

You've asked riders of all bike sizes, riding styles and riding types.

Go back and think about what you really want to know.

Spot on really! Especially on the BB rise front, you won't be able to get any usefull information from that poll.

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