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  1. PurpleFrog

    Advice on steerer tube length.

    By the Cycling Fashion Police, apparently. Who may want to explain why a Possession Of An Overly Tall Steerer is a crime... but not a quill stem, although the geometry will be the same. ...Which is to fit an average rider, according the the fashionable fit of the time. But fit changes with...
  2. PurpleFrog

    Does anyone look at the mtb wanted section?

    Re: sig We are the bold Marines of space We're steadfast, brave and true. So don't you dirtbags mess with us Or this is what we'll do We'll steal your dogs, We'll burn your schools, We'll stretch you on a rack. We'll borrow all your garden tools And never give them back.
  3. PurpleFrog

    Does anyone look at the mtb wanted section?

    Re: Re: ..As in you killed the previous owner???
  4. PurpleFrog

    Stolen bike

    Re: Ouch. Probably worth watching for the frame and R'hoff being sold as separates - too distinctive a combination together.
  5. PurpleFrog

    carbon rigid forks for a 26er

    Except for weight reduction, CF forks are nothing but hype and the placebo effect. I'd avoid them on a non-racing mtb because they're significantly more vulnerable to accident damage and catastrophic failure. CF is poor at resistance to impacts on the material - and such impacts can lead to...
  6. PurpleFrog

    What cyclocross tyres for mud.

    I found the Michelin Muds worked really well. It's been replaced (somewhat controversially) by the Mud2: http://www.cxmagazine.com/michelin-mud2 ... tire-revie
  7. PurpleFrog

    Rewriting Mountain Bike History?

    If anyone wants to read a book on real technical innovation and the problems involved then this very short one is outstanding: http://www.amazon.co.uk/One-Good-Turn-N ... 0684867303 http://en.wikipedia.org/wiki/One_Good_Turn_%28book%29 ..The mass production of interchangeable screws sounds...
  8. PurpleFrog

    Rewriting Mountain Bike History?

    Re: Re: That's marketing, not technical innovation. And while aesthetics are highly subjective, I think any reasonable person would agree that the classic 50s English "roadsters" were good looking - more so than most mountain bikes - and they were definitely utility bikes. So for that matter...
  9. PurpleFrog

    Rewriting Mountain Bike History?

    Putting my Serious Hat on: the pseudo history of mountain biking where it is marketed as a US innovation (but the real IP is Japanese) is emblematic of deep and fairly awful trends in US innovation. Apple is another good example: people think of it as innovator, but this is mostly false. It's...
  10. PurpleFrog

    Rewriting Mountain Bike History?

    Re: Again, no, this is simply not true. There was nothing "unique" except for those cheap 3x6 powertrains from Japan. That's it. There were no advances in frame design, no secret recipe: those wide Nokian tyres existed because there were bikes that could use them. As for "Why California?" for...
  11. PurpleFrog

    Rewriting Mountain Bike History?

    No. No one "invented" the mountain bike, because it isn't a real engineering concept - it's an arbitrary marketing category. If you look back to the early C20th, tourers routinely rode on tracks that would have passed for mountain biking in its earliest days. The frames they used were...
  12. PurpleFrog

    GT Outpost...

    ..But not a lot of other info in this thread. Obviously this bike lacks those weird extra tubes. I also found this: http://www.bikeforums.net/classic-vinta ... s-121.html ...Maybe the ebay Outpost frame is designed for teenagers/kids?
  13. PurpleFrog

    1996 Klein V-Brake Front & Canti Rear?

    Re: Yes, the lever combination would suck if left "raw". But surely they'd have install something like Travel Agents to convert the pull? (Except in reverse to a TA, if v-levers were used with cantis.) A company like Klein would have no problems have a batch of little pulley gizmos made. Is...
  14. PurpleFrog

    1993 GT Bravado LE

    The close-ups show a bike in urgent need of a respray... And its collection-only! Maybe he meant to start at £40?
  15. PurpleFrog

    1996 Klein V-Brake Front & Canti Rear?

    I'm just building a Zaskar like that and I can think of a reason why they'd do it: - A vee is one way of avoiding the cable vibration problems that can create squeal and reduce modulation in a canti - But the canti at the back might have been a Pedersen Self Energizer - also sold as Dia Compe...
  16. PurpleFrog

    NOS

    I got a pair of NOS Deore Thumbies from Hong Kong a few months ago. £35, original cables, utterly markless, still had the protective stickers on. *That's* NOS!
  17. PurpleFrog

    Does anyone look at the mtb wanted section?

    Ummm.... did you seriously expect otherwise? Xizangs are rare, usually hung onto extra tightly by collectors, and worth serious money, so likely to be ebayed. "Wanted" makes most sense when someone needs something of limited interest and value and so not worth ebaying. About as far opposite from...
  18. PurpleFrog

    Cheap outdoor bike storage ideas

    Sort of a Poor Man's Tracy Island...
  19. PurpleFrog

    Go on, then, show me your drop bar MTBs.

    Re: If you want to look for "trekking bars" then try the big German online stores - they're much more into this type of thing. So bike24 and http://www.rosebikes.co.uk/products/bik ... r_products The other options are ergons with bar ends and flipped and taped mary bars ..The Phorm G510...
  20. PurpleFrog

    Very interesting Trike

    I'm fairly sure that the bracing is for pedaling forces in sprints and, even more so, the torque of reaction forces from the inner rear wheel in turns. Remember that a trike can't bank, so a rider has to really work his body weight - this creates a terrific torque: ..It's sad that a sport...
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