MOAOZ Coil Rear Shock — Piggyback Reservoir, 165–265 mm

A coil shock with a piggyback reservoir, sized to replace what's on your frame. Eight eye-to-eye and spring-rate combinations, three spring colours, one part number per size — so you order the size you measured, not the one closest to it.

Sizes and rates

• 165 mm eye-to-eye — 450 lb spring — 35 mm stroke
• 190 mm eye-to-eye — 350 lb or 450 lb spring — 45 mm stroke
• 210 mm eye-to-eye — 350 lb or 450 lb spring — 50 mm stroke
• 240 mm eye-to-eye — 350 lb or 550 lb spring — 65 mm stroke
• 265 mm eye-to-eye — 450 lb spring — 85 mm stroke

All eight use an 8 × 24 mm mounting bore, with a black body, blue adjuster hardware and a black, orange or red coil spring.

Spring colour

Three options — black, orange or red — and all three cost the same at any given size. Colour is cosmetic: it does not change the spring rate or the ride. A red 350 lb spring is still 350 lb.

The black spring image is a colour render of the same shock rather than a separate factory photo. If you want a real photo of the black finish before ordering, ask us and we'll get one.

Fitment and sizing

Measure three things on your frame before you order: the eye-to-eye length of the shock you're replacing, its stroke, and the bore diameter at both mounting points.

The bore on these is 8 × 24 mm, and that is not a universal size. Plenty of frames run 8 × 20, 8 × 22 or 8 × 25 mounts. If yours doesn't match 8 × 24, this shock will not bolt on — no adapter included, and we can't make it fit.

Spring rate is chosen from rider weight and your frame's leverage ratio, not from how hard you want the bike to feel. Going to a different rate usually needs a spring compressor, so plan on a shop doing it.

This is a replacement part, not an upgrade kit. Wrong size means it does not fit.

Coil, not air

A coil spring holds its rate through the stroke and doesn't need pressure checks before a ride. It's heavier than an air shock and it isn't adjustable by pump. If you want to tune progressiveness with a shock pump, coil is the wrong choice.

What we don't publish

You can see adjuster hardware on the reservoir in the photos. We don't publish damping specifications for this model, and we're not going to guess at them — if you need a particular tune, ask before ordering and we'll check with the supplier. There are no published air pressure, torque or rider-weight limits either, so we haven't invented any.

Who makes it

MOAOZ — a Chinese suspension manufacturer. We buy from them, we ship it, we answer the emails. No certification claims on this page, because we don't hold the paperwork to back them.