Practical Knowledge LLC

Practical Knowledge LLC Specializing in offroad motorcycle suspension service and setup.

The things I find when I open things up…. A backyard lowering job apparently?
04/02/2026

The things I find when I open things up…. A backyard lowering job apparently?

Waiting on motos now
11/26/2025

Waiting on motos now

Attention to detail when assembling a shim stack. Just like in carpentry the orientation of the bow in the shims matters...
09/12/2024

Attention to detail when assembling a shim stack. Just like in carpentry the orientation of the bow in the shims matters. And yes even brand new shims can have bow to them.

Debris on a shock piston after an hour of break in and after resurfacing on a granite surface plate. even brand new bike...
09/12/2024

Debris on a shock piston after an hour of break in and after resurfacing on a granite surface plate. even brand new bikes need some TLC to make them work as well as they can.

Tech tip. Aftermath of a mud race. Looked clean from what I could see. Pulled the forks guards off and this is what was ...
05/09/2022

Tech tip. Aftermath of a mud race. Looked clean from what I could see. Pulled the forks guards off and this is what was hiding. One lap around the track and I’d have a fork seal leak from the dried on mud. Pull the dust seals and clean under them as well.

Custom modern seal head for a 1986 IT200 fresh off the lathe and assembled. The aftermarket part that used an O-Ring for...
10/05/2021

Custom modern seal head for a 1986 IT200 fresh off the lathe and assembled. The aftermarket part that used an O-Ring for a seal was not up to the job and leaked. The things I get myself into.

Wrenching for for this guy
08/04/2020

Wrenching for for this guy

Good luck supported riders Jake Lesko and Casey Frye at the High Point regional qualifier this weekend.
06/05/2020

Good luck supported riders Jake Lesko and Casey Frye at the High Point regional qualifier this weekend.

04/18/2020

This is why they peen the threads on your suspension out of the factory and why you use red loctite during assembly. Both sides were loose, not optimum for performance.

Forks appeared to be freshly serviced. Gotta go through everything. These rebound needles were frozen up from 18 years o...
04/09/2020

Forks appeared to be freshly serviced. Gotta go through everything. These rebound needles were frozen up from 18 years of use.

Second one this year. See my previous PSA about using too long of screws in the fork guard holes.
03/21/2020

Second one this year. See my previous PSA about using too long of screws in the fork guard holes.

Size matters... pay attention to the fork guard bolts. Using too long of bolts in the blind holes against the fork tube ...
02/24/2020

Size matters... pay attention to the fork guard bolts. Using too long of bolts in the blind holes against the fork tube can crush the tube and lock the spring in place. This is very difficult to fix and may the fork leg may need to be replaced.

In this case the short (center pictured) bolt needs to go in the blind hole.

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6510 Tyrone Pike
Tyrone, PA
16686

Telephone

(814) 880-0563

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