Image: RP_23 shock
As for Rear Shocks, Fox had a huge breakthrough with their RP23 Boost Valve Technology.
For 2010 Fox has taken their position sensitive Boost Valve technology and packaged it within an in line air shock. This takes the RP23 to a new level of performance.
These shocks provide excellent pedaling platform while absorbing bumps like no other technology we’ve experienced so far.
Less chain slap, less effort to carry speed through sustained bumpy terrain.
Shocks are great in ProPedal mode, in setting 1, 2, or 3, primarily and opting out to open mode occasionally to help settle the rear into the travel on steeper terrain.
I had a chance to ride this shock for two days while at the camp and can tell you that the biggest difference was in small bump compliance. Now, it seems that the gap in performance between coil and air shocks is beginning to close. Here is what I found:
Small bump compliance is much better than years past. The beginning stroke (low speed) compression is very supple in effect smoothing out the trail. This holds true whether the pedal platform is engaged or open.
Pedal platform is more sensitive allowing for more subtle adjustments while riding. Now you can actually leave ProPedal on while riding downhill and the shock will perform the way its intended to. I ended up riding the much of the downhill in ProPedal mode. Small bump compliance was great and when I hit larger obstacles the valve would open allowing the bike full use of it’s travel without bottoming out.
Adjustments are easily made on the fly. I found myself using the propedal lever and rebound adjustments more than normal.
Shock is very lightweight coming in at only .5lbs in the 6.5x.1.5in model I used on my bike.
The 2010 FLOAT series of lightweight, high volume air shocks incorporates the revolutionary patented Boost Valve damping technology.
Boost Valve was first developed and refined on the most demanding World Cup Downhill courses.
This year Boost Valve is brought into the XC, Trail, and All Mountain categories in the RP2 and RP23 level FLOAT shocks. Bumps disappear.
No sacrifice in traction or bump comfort while in the pedaling efficient ProPedal mode of the new FLOAT RP2 or RP23.
The DHX Air is the heavy-duty trail riding shock of choice in an incredibly lightweight package.
The large volume air spring and position-sensitive, velocity sensitive Boost Valve® damping offer an amazing amount of stutter-bump thru big hit performance in any type of terrain.
With adjustable ProPedal®, linear adjustable rebound adjustment, and independent adjustable bottom-out resistance.
DHX RC4 AND DHX RC2
DHX RC4 is a new from-the-ground-up, purpose-built downhill shock specifically engineered to the demands of the world’s most brutal downhill courses.
Externally adjustable high and low speed velocity sensitive damping and a completely redesigned Boost Valve® for position sensitive ending stroke control, act independently from each other allowing the rider to dial in the perfect balance of traction, small bump compliance and big-hit absorption.
A larger diameter shaft lowers internal pressures and increases oil flow throughout the entire shock allowing for a wider range of tuning.
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