[hungryleprican]

My friend and I were talking, and it may sound kinda stupid but has anyone thought of making a U-turn shock? Or is that just a stupid idea. Or has it been invented already it just sucked. If you think about it, it could be kinda nice to adjust your geometry for wherever your riding.

 

[dhkid]

fox stop making tho.

 

[skatetokil]

bionicon has the on the fly rear travel adjuster. thread about their suspension system around here somewhere.

 

[OGRipper]

I like adjustable travel stuff. The Scott Ransom has adjustable rear travel with a proprietary shock system, seems pretty neat but I've not done more than a parking lot test:

http://www.scottusa.com/ransom/

 

[Sandwich]

yeah bionicon did some pretty cool stuff, but I don't think anybody has a built-in adjuster for their shock. It would be cool to drop a 7" freeride bike down to four for flatter/uphill stuff, and then back up to 7 for gnarstyles.

 

[OGRipper]

yeah bionicon did some pretty cool stuff, but I don't think anybody has a built-in adjuster for their shock. It would be cool to drop a 7" freeride bike down to four for flatter/uphill stuff, and then back up to 7 for gnarstyles.

Um, Scott Ransom, see my post above. Remote, on-the-fly travel adjust.

 

[mandown]

the big problem with adusting the shock on the fly is that it slacks the head angle. you get nicer short travel charatersitics with a crappy climbing head angle made worse by shortening the rear shock, functionaly compressing the suspension. of course, you can drop the fork too, if you have an adjustable travel front end, allowing you to keep the head angle closer to the starting angle. of course, you then need to factor in that you will be lowering your bottom bracket by the amount of front and rear travel reduction, allowing you to smack pedals all the way up the hill on your awkward 40lb short-travel climbing machine.

Edit - What is needed is a sliding shuttle mount for the shock with a quick release and a lockout on the shock to go along with the travel adjust shock. you compress the shock, slide the mount down the shuttle (assuming it is downtube mounted) to bring back the BB and HA, then lock out the shock for short, firm travel w/ a better head angle.

 

[mandown]

as long as i'm being a kill-joy:
let's not forget that reducing the shock travel will slack the ST angle along with the HT angle, moving the rider weight closer to the rear wheel. amplify this weight shift by increasing the seat post length for comfy climbing and you are now are well over the rear wheel, making for another great climbing characteristic on your adjustable travel bike.

simple answer = adjustable fork w/ lockout and a rear shock with a lockout. lock the rear shock, drop the fork and lock that out too. you now have a firm pedaling rig with a steeper HA and SA. the BB is a bit lower than you rock/root-clearing DH starting geo point and you are good to go!

 

[rosenamedpoop]

Answer: just climb your DH bike, it's really not that hard. Stand up get forward and put it in a relatively tall gear. Yes, I do this.

 

[downhillracer]

Answer: just climb your DH bike, it's really not that hard. Stand up get forward and put it in a relatively tall gear. Yes, I do this.

oh yah!

 

[Enduro]

The original U-Turn shock:

Out of production since sram took over though.

 

[Sir_Crackien]

yeah like enduro presented a u-turn shock really did exist at one point in time

 

[Demomonkey]

The original U-Turn shock:

Out of production since sram took over though.

The diameter of that shock shaft is HUGE! It looks about that same as a DHX coil!!

 

[fergyrock]

yeah bionicon did some pretty cool stuff, but I don't think anybody has a built-in adjuster for their shock. It would be cool to drop a 7" freeride bike down to four for flatter/uphill stuff, and then back up to 7 for gnarstyles.

The way the Bionicon works; hold the button on the handlebar and lean forward the fork gets shorter 150-70mm and the adapter screwed onto the end of the shock piston extends and changes the eye to eye length of the shock 15mm, it does not change travel. This positions you further forward and greatly reduces your leverage on the rear shock making it feel stiffer, reducing bob. Then the opposite happens when you hold the button and lean back, also you can position it anywhere in the 6 degree angle change just by letting go of the button wherever you want.

Bionicon is the only bike that effectively gives you DH and XC geometries on-the fly.

Here is the Super Shuttle, our newest, with 6 up front and just under 7 in the rear with head angle range of 65-71 and can be built under 30lbs. It is my bike of choice.

 

[BikerBoy28]

Answer: just climb your DH bike, it's really not that hard. Stand up get forward and put it in a relatively tall gear. Yes, I do this.

Same!