MB1 Revalved Suspension Fork & Shock

MB1 Suspension system

2013 Honda CRF450R Revalved Suspension Fork $196. 98

Shock $196. 98

From the March 2014 concern of Dirt Rider Magazine

2013 Honda CRF450R Revalved Suspension Fork The brand new Kayaba PSF air fork isn’t for all riders, and some can’t obtain totally comfortable with it yet, me personally included (I don’t like the severe mid-stroke feel). While searching Craigslist I found some Showa spring forks from a 2011 CRF250R for $500. I “forked” over the cash after that sent both sets of forks (air fork and spring fork) and the stock shock to MB1 Suspension to see if they could make magic happen.

Once I acquired the suspension back (which just took five business days) We immediately went to the roughest monitor in Southern California: Glen Helen Raceway. Having both a revalved standard and a revalved PSF shell, I was able to see if in fact the particular spring fork had any advantage. I rode with the MB1 revalved air fork first along with the revalved shock and noticed great stability front to rear, but the shell needed to firm up on the initial area of the stroke. Turning the compression in a few clicks on the fork helped treatment the problem, and I was actually quite pleased with its setting. Mid-stroke harshness that was felt with the stock valving was minimal, and the front end settled better into corners. The shock had better damping than share and held up better on hard landings. Coming out of corners, the shock squatted nicely and the overall ride feel was improved.

Next up was the Craigslist MB1 revalved spring fork. This shell soaked up smaller bumps better and the mid-stroke feeling was slightly more comfy when coming into rough corners along with big braking bumps. The end heart stroke felt a little softer and much less forgiving than the air fork on big slap-down, flat landings. The overall feel of the fork felt more predictable in corners because it gave more traction on lean in (especially on flat corners). MB1 gave me reasons to be even more indecisive. Going into this I thought the spring fork was far better than the surroundings fork, but the spring fork is only minimally better in the beginning to the middle of the stroke. I was surprised by exactly how nicely MB1 got the air shell to work, as I was not a big fan of the stock feeling. The more jumpy the track, the more I like the environment fork. On rough, faster tracks the spring fork has more front end traction and comfort. Overall, I am happy that MB1 made improvement with the PSF, and now I have a choice of which fork I want to use on different types of tracks. —Kris Keefer

2013 Honda CRF450R Revalved Suspension reservoir

Rated 90

Turnaround time 18/20

Functionality 48/50

Communication 8/10

Design 8/10

Price 8/10


mb1suspension. com

(951) 371-5045

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