a few happy OSO customers showing off their oso shock and fork hand dynos
sUSPENSION TECHS, SHOP MECHANICS, AND MTB RETAILERS,
IF YOU DON’T HAVE A FORK OR SHOCK HAND DYNO AND YOU WORK ON OR SELL SUSPENSION, YOU NEED TO GET ONE!!!
mtb riders and racers,
IF YOU SEND YOUR SUSPENSION IN FOR SERVICE, MAKE SURE THEY HAVE A HAND DYNO!!!
OSO MTB/moto/Emoto SUSPENSION TOOLS AND MERCHANDISE
Featured
$20.00
OSO - Design To Charge - Carolina Blue/Navy/Brown
5.2-ounce, 100% ring spun combed cotton
- Rib knit neck
- 3/4 raglan sleeves
- Scalloped hem
$20.00
OSO - Mtns - Heather Green/Forest/Brown, except Men’s M/L = Heather Green/Kelly
4.2 oz, 52% combed and ring-spun cotton/48% polyester Bella+Canvas.
100% combed and ring-spun cotton.
Contrasting color ringer binding at neckline and sleeves.
Side-seamed.
Men's and Women's cut
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Men’s Medium and Large specific is ANVIL 988 Heather Green / Kelly Green:
4.3 oz, 35% ring-spun cotton/65% polyester.

High-Quality CNC-Machined Shock Hand Dyno used by top Engineers, race technicians, and MTB & Suspension Companies!
International Shipping costs should show up when you enter shipping address, otherwise please email us for current shipping costs. FYI, these are in the process of being updated.
Key features:
Tight tolerance precision machined parts for a solid feel when diagnosing and checking shocks/dampers. Less play = less noise when checking on product.
Long dyno handle for better leverage and diagnosing shock performance
Tall dyno tower to fit the smallest to largest MTB shocks, INCLUDING Mini/Small/Mid-Size Moto and eMoto rear shocks! Max Length ~ 15.5in (395mm)
Diagnose rear shock issues with this key fixture—a must-have for every suspension engineer and technician. With only the shock on the dyno, you can:
Check compression and rebound adjustment range and resolution
Confirm full travel and IFP clearance
Check friction
Test for adequate gas charge
Check for any bleed or parts issues
Aid in installation and removal of air sleeves
PRECISION CNC MACHINED Mounting hardware designed to work with STANDARD, METRIC, and TRUNNION eyelets developed by most suspension companies over the past 30+ years.
Trunnion mount accepts:
Metric Trunnion (M10 threads) 54mm wide
Trek Trunnion (M10 threads) 40mm wide
Trek Trunnion DCRV extra volume (taller) eyelet
***Trek ‘thru-shaft’ clevis shocks will work with current mounts, but hardware was not specifically designed for it. One can set it up though so you can with the parts provided.***
Pins available for the following eyelet bores:
8mm
10mm
12mm
0.5in
15mm
Specialized custom shock
Sliding Pin for Epic Brain clevis shocks
Strut Body adapter
Videos, manual, and additional tech tips in the SUPPORT page.
***PLEASE email us with any product, shipping, or check-out questions!***