to block or not to block?

DSN_KLR650
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traderpro2003
Posts: 163
Joined: Mon Nov 21, 2005 7:39 pm

to block or not to block?

Post by traderpro2003 » Thu Nov 29, 2007 5:08 pm

I compress with 2 ratchets up front and 2 in the rear to the low cleats in my Dodge Ram. The bike has never moved or swayed on my watch. If you block--especially with less compression distance btw fender and tire--I don't think you can go wrong. Then again why is it those that ratchet the rear don't block it?? I say this is discriminatory! :) - Brian --- In DSN_KLR650@yahoogroups.com, Silver Duck wrote:
> > The nice thing about blocking the front end is that it really
allows the bike to be snugged up on the trailer. My bike would wobble badly without the block, sometimes looking like it would topple off the trailer. With the block, no swayiing, no wobbles. Highly recommended.
> > > > Arden Kysely wrote: > I've hauled a lot of bikes over the years--never blocked
the front
> wheel and never blew a seal. Doesn't hurt to be cautious, though. > > The place I do use a block is in front of one bike when hauling
two.
> That way the handlebars don't foul each other. > > Used to ride the bikes up the ramp. Don't do that anymore, but it's > sure tempting sometimes. > > __Arden > > --- In DSN_KLR650@yahoogroups.com, Greg May wrote: > > > > Hi Brian....my preferred way to haul my KDX was to do the pvc
pipe
> between the tire and the underside of the fender but the pipe
length
> I used was slightly longer then the distance between the tire and
the
> fender so you had to unload the front suspension slightly before it > would fit. This to me had two benefits, the first being once the
pipe
> was installed you ddn't have to try to hold it in place and tie the > bike down at the same time. The second being that when you start > compressing the front suspension you start unloading the rear so if > not tied with four straps, I usually only use two, the rear will
tend
> to move around. Two straps were perfectly acceptable for the short > trips I made. > > I did on quite often haul the bike "unblocked" and never had a > seal fail but I have, not everytime, vented the forks by depressing > the air valve on the top of each fork once the bike was tied down. > The only stress is on the fork springs then and I for the short
trips
> I took I never saw any difference in static sag in the front > suspension but I probably would only check this in the winter after
I
> set the bike up originally......have a great evening....Greg > > > > traderpro2003 wrote: > > Good morning all. I used to put a wood block between the > front tire > > before ratcheting-down. But after several times I stopped--not
sure
> > why either. But I've driven thousands of miles this way and it
has
> > never caused any damage for me. However, as suggested, you can
use
> a > > scrap 4x4 (wood) or buy the device from the device from a shop if > you > > like. > > > > I think we need to have a special show on Discovery Channel > dedicated > > to busting or confirming our KLR mysths. Now, I am not 100% sure > > either way on this. But the fact is once you start compressing
the
> > forks, the same pressure will apply to the seals regardless of > > block/or not assuming equal depths and perhaps negligible > differences > > at near-equal depths. E.g. clamping the forks to 50% capacity > exerts > > the same pressure at the seals REGARDLESS blocked or not. The
only
> > possible argument is for a block that limits compression to a > certain > > depth (which is what "blockers" are recommending) which is less > than > > where you're comfortable clamping forks down without the block > ("non- > > blockers" like me clamping down hard and heavy). We're not
talking
> > about gas charged shocks here. We're talking about fluid dynamics > > and forks designed to withstand these hydraulic pressures. Let's > > stop and look at look what we do in the field. 75mph loaded with > > gear humming across the desert and hit a whopper of a dip that > > instantaneously compresses those forks near bottom. The hydraulic > > pressure is tremendous. Which is what these fork tubes and seals > are > > designed to do and endure. Now some will argue this is max moment > > load vs. steady state, but I'll suggest this F_max is much more
(a
> > high multiplier!) than you will ever sustain ratcheting in your > truck > > bed while under normal driving conditions (vs. going over a > > cliff...you know who you are!). > > > > Where you could have problems is in a situation of extreme temp
or
> > altitude change (pressure change) over time where the compressed > fork > > temp and pressure rise while the fork is strapped in a compressed > > steady state. Where would the added pressure go if it couldn't be > > further compressed and contained in the fork chamber? > > pssssssssssssssssssss! Again, unlikely but possible especially if > > held compressed for extreme periods of time. > > > > Now, I've changed fork seals in the KLR and these buggers are > pretty > > robust. I remember sending one fork 150 psi to remove a stubborn > > seal, and it didn't budge and no oil skirted the seal. I > > finally "massaged" it with an awl while applying a reasonable 60 > > psi. The other popped at 60 psi within 3 seconds. Remember there
is
> > a retaining ring that holds this seal from blowing-out. That ring > is > > extremely important to the seal's integrity. But that seal itself > is > > far beyond some rubber o-ring or cheap plastic some might
envision.
> > Frankly, it's rather burly like it needs to be. A seal blow-out > > could seriously injure or even kill someone. > > > > Best regards - Brian > > > > --- In DSN_KLR650@yahoogroups.com, "Don Pendergraft" > > wrote: > > > > > > I have read this as well. I have also read that you can cut a > short > > piece of > > > PVC and vertically wedge it between your tire and fender and
then
> > have the > > > freedom to crank away on those straps! I will have to try it
the
> > next time I > > > have to load my bike in a pickup. > > > > > > Don+ > > > > > > _____ > > > > > > From: DSN_KLR650@yahoogroups.com > > [mailto:DSN_KLR650@yahoogroups.com] On > > > Behalf Of Dooden > > > Sent: Thursday, November 29, 2007 6:22 AM > > > To: DSN_KLR650@yahoogroups.com > > > Subject: [DSN_KLR650] Re: Got me a NEW used Truck > > > > > > > > > > > > > > > Advise DO NOT RATCHET the front end too tight, the forks will > > > compress and if left that way chances are you will be replacing > > fork > > > seals, there is aproduct made to fit between the front tire and > the > > > fender mounting area that keeps the froks from compressing.
(cut
> a > > > chunk of 2x4 if you want) > > > > > > > > > > > > Recent Activity > > > > > > * > > > > > > 15 > > > New > > > > > >
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