YZ450F Project Bike - JTR Suspension
Tuesday 11 October:

After having more than a month on the bike, all was going well and the
improvements were all excellent. I was however having some issues with the
suspension, being winter and riding mainly sand tracks, choppy tracks were becoming an
issue, especially with long sessions and races. I was finding the forks were giving me a
hammering and the result being my shoulders would ache for days afterwards.
Aucklander and fellow rider John Turner overheard me talking about
the issues I was having and offered to help out. John successfully runs
his own business offering motorcycle repairs, servicing and suspension and
being a rider himself he has the ability to relate a lot better as to what
riders are experiencing and how they can improve it.
So John came out to watch my next race and said straight-away
that he could see what my issues were and knew just how to fix them, so the bike
was his for a few days to make some changes.
John Turner: "Up
front the stock forks tend to run low in the stroke and have a harsh overall
feel. I adjusted the fork valving to run higher in the stroke giving it a
plusher feel while increasing front-end traction."
"The stock shock tends to overpower the front. I
made some internal changes to the shock piston and valving to let it settle
into it's stroke better, balancing out the bike and increasing cornering control
whilst providing a plusher overall ride that doesn't blow through or bottom
out.”
And the result?
A new bike! Not only did it stop pushing into corners as it now longer
dipped the front end under brakes giving you the feeling you were going to wash
out. Instead it tracked across the braking bumps, sitting much lower in the rear
end giving me the ability to attack the corner more and getting on the gas
faster.
For more info and to get your suspension done, contact John
and I’m sure he’ll be more than happy to see you find a solution with your
suspension too.
John Turner
JTR Motorcycles Ltd
Phone
098264034
Mobile 021503267
Email jtracing.nz@gmail.com


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