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Hi.
I have a fox rp23 kashima adaptive logic boost valve shock. Both settings are M (written on the shock) on my salsa horsethief 2012 model.
I find that the pro pedal doesn't really do much. I know its not lock out and its about low speed compression but I'd like it to do a little bit more. I don't think its broken as it was like that when I bought it.
I find with the sag I sink into the frame which makes climbing feel sluggish. Downhill on open its fantastic.
It's just over a year old so out of warranty anyway.
Tf tune can service it and tune it for £140 plus post.
So do I take the chance with a tune or buy a fox CTD shock which should in theory have a stiffer climb mode. From my research the CTD get mixed reviews.
Any thoughts and experiences most welcomed
This is what tf tuned said
Hello,
A PUSH tune will fix you up.
Cost of the service/tune is £143 and you are more than welcome to book online when you have the time.
Here's how it works:
FOX CTD boost valve and RP series shocks.
When a FOX RP or CTD boost valve series shock in its standard guise compresses, the oil in the damper travels through two different paths; the first of which (low speed) is through the centre of a bolt which holds a piston to the damper shaft.
The damper shaft is housed within the shock body (grey or gold anodised part).
The oil flow through this central port can be stifled by a bullet tipped poppet valve when the rider activates the pro pedal lever. This is what provides you with a platform.
The secondary route for oil, is to travel through ports in the piston (mid-high speed).
Once through the ports, the oil is controlled either by a penny washer which is preloaded by 1,2 or 3 conical washers to give you soft, medium or firm compression; or on more recent boost valve products, a hydraulic valve is used, and forced against the piston ports by a charge of nitrogen (boost valve pressure). Variations in this pressure provide you with different levels of compression resistance.
There are only a few different compression settings available to accomodate every rider and every bike linkage/leverage.
Of course, once the low speed oil flow has overcome resistance from the poppet valve, the washers or boost valve behind the piston provide the blowoff threshold of the platform.
Once compressing, the washers or boost valve don't offer a great degree of control for the oil, providing the rider with a shock which feels initially harsh, and then wallowy. This wallow is of course, accentuated with large volume air cans.
When your shock is PUSH tuned at TF tuned shox, the piston is replaced with the PUSH Vxr2 version, which has larger ports to allow more oil flow. We then use our expertise and consideration of our customers preferances, to configure a stack of up to 30 shims each 1 1/10 of a mm thick.
Every PUSH tuned shock is unique and designed specifically for the rider, and bike.
The PUSH shims control the flow of oil from the very beginning to the very end of the compression stroke, offering a ride characteristic which is completely customised for your frame and riding style.
The propedal feature of the shock still remains, but in a better form, because we can alter the resistance from the poppet valve to offer more or less platform, depending on your requirements.
The Vxr2 piston also has larger ports for high speed rebound, allowing us to customise the rebound speed to return quickly after successive hits without being like a pogo stick.
The end result is a shock which tracks the ground far more smoothly, responding to small bumps actively and giving endless feeling travel, whilst retaining a good level of resistance to pedalling when the propedal lever is actuated.
After this customised damper circuit has been configured, we can also offer the BIG HIT KIT to provide a very gradual bottom out control for more extreme applications. This extra option is particularly useful for riders using shocks with a large volume air can.
My RP2's pro pedal didn't work from new. I sent it to Mojo as a warranty claim and there was a problem with the shim stack. It's now bob on.
I think someone must have raided Fox's seconds skip.
My shock is the same as yours and had the same problems as have numerous others. Loco sorted it for £90 (I think).
It still doesn't fully lock out which in real life isn't an issue.
I also have a CTD which isn't as plush but there is a real difference between the 3 settings and it does fully lock out.
I have the CTD and in so many ways it's much better than the RP's
I found with the RP I was constantly having to choose between Full on Down or Full on Climb. The Middle setting of trail seems to cover that by giving adjustable LSC (I have the trail adjust one) that means I have a general riding setting that I use most of the time, but an all out climb lockout for the road ups and a free for all down when I want it. I spend 80% of my time in trail which is lucky as I now don't have C or D working.... the one on the mussus bike had an issue where the switch lever got stuck (the holes in it are too steep sided and newer versions have this sorted).
Even with these issues I rate it highly.
I don't notice any difference with Pro Pedal on my RP23. It came with the bike ex-demo, but to be honest I don't really need it. The VPP on a Nomad just doesn't give me much 'bob' at all.
Had the same issues with my rp2. Turns out something had blown in it. Sent it off to loco and came back a different shock.
A lot of money though. Half way towards the price of a new shock!
A lot of money though. Half way towards the price of a new shock!
At least you know you are going to end up with a good shock.