Bike is my own design and construction, its made from one of the 6000 grade
aluminium, in condition T4 (as supplied) this is significantly stronger than
many other grades of aluminium - its difficult to obtain small quantities of
tube....I found some 6000 stuff and kept to this grade - you cant mix it.
Heat treatment would have prolonged the frames life but its not an easy
process to apply to a one-off. I designed this before the Whyte appeared on
the scene and the suspension is not the same as the Whyte, I used a J path
on my first bike (like the Whyte) and my conclusion was it doesnt work.
Suspension is slightly different to the BMW design as it has a sliding joint
within the head tube. I did consider a floating disc caliper to isolate it
from the suspension - this is possible with this design, I may yet
experiment with this.
My objective with the design was to reduce friction and improve the small
bump performance and I was quite happy with this performance though the
design is complex mechanically and wouldnt really mass produce. Ride was
silky smooth with 100mm travel front and 120mm rear. The small bump
performance was better than my Fox. Im not riding the bike at the moment but
I will probably rebuild it soon.
This was my second bike and I may start on a 3rd design soon - the
design/build process is good fun and its great riding a bike that you have
made yourself. I am a professional mechanical engineer with 20 years
experience in automotive.
Thanks for your interest - I will answer any other questions - if I can.
Max
"Scott Gordo" <
[email protected]> wrote in message
news:
[email protected]...
> On Mar 19, 7:00 pm, "max" <[email protected]> wrote:
>> Hi all - sorry - its a mountain bike.........I rode this for a good few
>> years but its getting tired now, heat treatment is not for home builders
>> and
>> the frame is subject to fatigue / stress
>> cracking.http://www.bikemagic.com/gallery/image.asp?uabn=1028&UIN=2808&Positio...
>> Max
>
> Reminiscent of a Whyte:
>
> http://www.benhaywardcycles.com/shop/images/uploads/large/PRST1.JPG
>
> /s
>