Calculate air pressure in rear shock

[anotherkiwi]

So I read https://support.sram.com/hc/en-us/a...ould-I-have-in-for-my-rear-shock-for-my-rider -weight

Does this formule change for a vélomobile? Do I have to add half the velomobile body weight on the rear wheel (>10kg)?

Thanks

 

[Christoph Moder]

Does this formule change for a vélomobile? Do I have to add half the velomobile body weight on the rear wheel (>10kg)?

• not the velomobile weight, but VM + rider
• rear wheel: not half of the weight, but approx. 1/3 or less (= weight distribution)
• depends also on the leverage; if the suspension is further away from the pivot, it has to be softer
• => but if the weight is at your usual center of gravity, everything should be fine

 

[beate]

Well, to my experience the values given in this video are nothing more than a first guess. In the Go3 with a RockShox RL, I am at about 10-11 Bar at a total weight of about 105 kg working at roughly half the fork length. 9 bar feels ok, but occasionally the max excursion will be reached.

 

[anotherkiwi]

Ok thanks!

Some math later 53 cm swing arm, 17 cm pivot point = 264 psi