Scott Spark 960 2019 Fusion Nude RL Shock Pressure

[Shakes]

What Pressure should your Scott Spark 960 2019 Fusion Nude RL be?

[Me rida my bicycle]

It depends on your weight and ride preferences. The max psi should say on the shock so just stay below that. Sag around 15-25% as rough guide.

[thebob]

For a Spark aim for 25% sag. 11.25mm from the lip of the dust seal to the edge of the o-ring

[Gerhard765]

Agree, every person is built differently. Measure sag when just sitting normal on bike. Should be about 25%. Recommended sag for rear is a bit more than or front.

[Bos]

What Pressure should your Scott Spark 960 2019 Fusion Nude RL be?

I helped my Brother in law set his up  his Spark 900 (120mm) 2 weeks ago. it had the Fox DPS EVOL NUDE Performance shock. That thing went up to 280psi before he got about 27% sag at his 78kg weight. Im not sure how the NUDE internals effect it, the thing but I'd hate to know what a 90kg guy is supposed to do. Unless, my shockpump is way off.. 

[Me rida my bicycle]

I helped my Brother in law set his up  his Spark 900 (120mm) 2 weeks ago. it had the Fox DPS EVOL NUDE Performance shock. That thing went up to 280psi before he got about 27% sag at his 78kg weight. Im not sure how the NUDE internals effect it, the thing but I'd hate to know what a 90kg guy is supposed to do. Unless, my shockpump is way off..

 

that's a lot on my Spark 940 I had it at 240psi 20% sag and I am 20kg heavier. Was it in full open when you set it up?

[thebob]

You really do need to pump the rear shock up 50PSI at a time, remove the pump and cycle the rear shock to ~30% of travel at least 10 to 15 times and reapeat until the desired pressure is reached.  This balances the positive and negative air chambers and gets sag accurate. Especially for the Scott Nude shocks. For reference I was at 220PSI at 75kg on a Fox DPS. Friend on a X-Fusion shock was around 250PSI at around 85kg

Edited July 22, 2020 by the_bob

[Bos]

that's a lot on my Spark 940 I had it at 240psi 20% sag and I am 20kg heavier. Was it in full open when you set it up?

 

Yes! It blew my mind. Unless like I said, the pump's reading is off.. I cycled the shock a bunch of times to balance the pressure. Didn't remove it though.. Is it not to damage the shock? perhaps to late :blink:Will get a second opinion

[thebob]

Yes! It blew my mind. Unless like I said, the pump's reading is off.. I cycled the shock a bunch of times to balance the pressure. Didn't remove it though.. Is it not to damage the shock? perhaps to late :blink:Will get a second opinion

By keeping the pump on the equalisation is happening between that and the positive air chamber, not the negative air chamber

Edited July 22, 2020 by the_bob

[Bos]

By keeping the pump on the equalisation is happening between that and the positive air chamber, not the negative air chamber

Remember there is a one way valve in the shockpump. I have never had issues with it. One can clearly feel the pressure ramp up before equilising, and then when the shock is pushed passed the sag point, one can feel it. Anyway. Splitting hairs here. Probably best practice to remove it.