Kristina naozaj?
tak napr. citacia od FOX (
http://www.ridefox.com/2016/filter.php?m=bike&t=shocks) :
NEW FOR 2018
EVOL HAS EVOLVED
"SHOCKS The new lighter one-piece EVOL air sleeve was designed for each shock size (imperial and metric) to balance internal forces, and has maximized bushing overlap to reduce friction during “real world” forces like side-loading and twisting."
keby sa to zdalo malo doveryhodne, tak napr RockShox (
https://www.vitalmtb.com/features/The-Ultimate-Guide-to-Metric-Shock-Sizing-and-the-RockShox-Super-Deluxe,1349):
"More Bushing Overlap
"The regular handshake is kind of weak, but the super bro handshake is much stronger. It"s not rocket science." - Tim Lynch
Every shock relies on bushings to keep the shaft centered relative to the body, and the shaft glides in and out along the bushings. The distance between two bushings is known as bushing overlap. When that distance is small, binding can occur under lateral loads. Of course
bike manufacturers do their best to prevent the shock from seeing these loads by making stiff frames, but it still occurs to a large extent on some designs. This can result in worn out shock components, leaking, etc.
By increasing the overlap you make the shock more resistant to binding, which results in better traction and improved durability. The Super Deluxe has 20mm of air can bushing overlap (blue arrows) versus 15mm on the Monarch Plus. That"s a 33% increase. The piston/sealhead bushings (green arrows) see an increase from 9.3mm to 17.7mm, or 90%.
On trail this is most noticeable near top out when there"s side loading in the frame, like when you"re coming into a corner unweighted and looking for traction. With more overlap the shaft moves easier as your wheel touches the ground."