rear shock setup help please.

[Sean0711]

good evening everyone,

Ive had my rail for just over a month now and am struggling to get the rear shock dialed in. its the standard RockShox Super Deluxe Ultimate RT3 thrushaft on the rail 9.8 has anyone got a PSI chart for weight as im on the heavy side 105-108KG geared up, and cant get the sag close to 20% also does anyone else have this almost pressureless sag at the very top of the shock for about the first 7ish% no matter what psi I put in this doesnt change at all. My previous bikes all had fox shocks and I never had any problems dialing them in to how I wanted them. this one just seems to be getting the better of me!

thanks in advance.

 

[Pas2_77]

Have You used Trek suspension calculator from Trek's webpage? Choose The bike U got, add your weight with your gear on and it tells roughly how many PSI, clicks etc for You...

 

[Sean0711]

Have You used Trek suspension calculator from Trek's webpage? Choose The bike U got, add your weight with your gear on and it tells roughly how many PSI, clicks etc for You...

thanks! what an idiot I am.... I was trying the rockshocks website and thats got no info for set up on there just a complete service manual, so i can now dismantal the entire shock but couldnt set it up!

thanks for your help.

 

[coregrind]

20% sag is a bit uncommon for the rear. The Trek calculator will have pressure suggestion closer to 30%. I tend to aim for around 28% myself.

 

[Bike Gorilla]

I'm around 105kg and thought that about 30-32% sag worked best. I also ran the low speed switch on minus.

 

[Nickolp1974]

i'm 100kg kitted, trek suggests 265 psi, i'm at 310 psi for 30% sag. I never use all travel on drops (2ft ish??) probs about 15mm left of stroke, shock is 230x57.5. is there a bottomless token fitted stock?? should i remove it??

 

[neiloxford]

I would try it at 265 psi and take it out for a couple of hours. Take the pump just in case you need to add a little.

I followed what Trek suggested and not touched it since.

 

[PetrD]

I am 130kg and I was solving shocks also. I ended at RockShox Zeb 170 at front and rear shock is now Fox DHX2 with 700lb coil. I also tested airshock Fox DPX2, but that has been just on limit (350psi) for me. Because my weight I changed rims to carbon one - Bontrager Line Pro 40.