Manitou Radium Expert Lock-Out Shock

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Manitou Radium Expert Lock-Out Shock

The all-new Radium Expert line of air shocks is designed with performance, durability, weight, and cost in mind.

  • Platform damping with external rebound adjuster; and lockout (ideal for XC riding)
  • 43mm air canister w/ 10mm Hard Ano aluminum damper shaft
  • Sized by travel/stroke and eye-eye measurements
  • New 2012 graphics

Please Note: Rear shocks do not include reducers or mounting hardware. Check your frame specs or consult with your frame manufacturer, then check our site under Components/Rear Shocks/Parts for the appropriate item(s).


Weight Lbs / Grams .51 / 230
Damping Shim Stack
Canister Diameter 43mm ID
Adjustments Air
Air Valve Type Straight, Long
Damper Shaft Material 10mm Alum
Damper Shaft Finish Hard Anodize
Damper Body Color Black Hard Ano
Bushings Steel/Teflon
Eyelet Hardware 2-pc AL through 37.9mm
3-pc S.S. at 38mm and wider
Graphics New 2012

Showing Questions 1-2 of 2

Q: I have a rock shock that needs to be replaced, and its eye to eye measures 165mm does this shock come in that size?

A: 165mm would be 6.5”.

Q: i'm replacing a fox float R and wanted to know if this would fit. Spec's are roughly fox float R, mounting eyelets- 6" center to center. 1/2" thick. 1/2 diameter. reducers are 2 x 8mm and 2 x 4mm through bolts just shy of 6mm would I be able to use the existing spacers? (are the eyelet holes the same diameter and thickness?)

A: Yes this shock will work, it comes in a 6” length.

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AWSOME - Apr 14, 2015

1 2 3 4 5
5 out of 5 stars
Red Lion, PA

I am very happy with this shock. I purchased it to replace a Fox CTD, and it has been excellent. This is an inexpensive alternative to the Fox shock. It does not have the extra trail option but I have found it is not necessary. The lockout works great and makes the bike feel like a hardtail. The switch is large and easy to access while riding.

2 out of 2 people found this review helpful
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Sweet shock sweet price - Jul 23, 2014

1 2 3 4 5
5 out of 5 stars
sacramento, CA

I had an older Manitou shock a Q3 this one rocks over the old one Im super happy with the lock out it cant be beat for the price and its built well feels solid did some three to four foot jumps with a solid feeling

3 out of 3 people found this review helpful
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Awesome upgrade - Apr 23, 2014

1 2 3 4 5
5 out of 5 stars
Carb., IL

I bought this to put on my 2009 giant reign x2 in replacement for a coil shock. The change was the best decision I've ever made. This shock works extremely well on any trail and it is even strong enough to hold up to some 5ft+ drops to flat. It's pedals performance is also unmatched. With the performance being so high and the price so low, I don't see why anyone wouldn't buy this.

5 out of 5 people found this review helpful
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Better Than Fox Float R - Oct 21, 2013

1 2 3 4 5
5 out of 5 stars

I replaced my 7 YO Fox Float R with the Radium and the improvement is very noticeable. The ride is as plush but this takes bigger hits before bottoming at the same sag setting. The rebound ability when the rear wheel strikes objects seems very different and just clears stumps and such much better. It increases your confidence to do jumps you wouldn't have tried before. It also climbs more efficiently and you get a lockout feature as well so it is superior at all levels compared to my vintage Fox Float R. I can't recommend this enough for its performance and value.

9 out of 10 people found this review helpful
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