ONE ZERO

The One.Zero belong to a family of mono-tube shock absorbers with excellent interchangeability of parts.

The most popular damper in club motorsport?

One.Zero is your easy-to-understand introduction to externally adjustable damping, trusted by amateur racing drivers across the broad spectrum of national motorsport.

One is all you need.

A single clicker adjuster provides quick and easy adjustment of low-speed damping. The solitary adjuster has 24 positions and effects bleed across the piston in compression and rebound.

Discretion assured.

If the clicker knob is too obtrusive for you—or if packaging is a concern—One.Zero is also available with a cool and compact sweep adjuster.

EXTERNAL ADJUSTMENT

Quantum One.Zero shock absorbers are externally adjustable.

Adjustment is made by turning a knurled collar—or clicker—on the top eye.

HOW IT WORKS

Type

Bleed adjuster

Affects

Bleed across the piston in both directions

Effective area:

1,185.7mm2

Number of clicks:

24±1

Full stiff:

Position 0, fully clockwise

COMPRESSION

Positive pressure inside the rebound chamber causes oil to flow through the bleed jet. A restriction occurs where the oil passes between the jet and the needle.

Oil flows through cross-drillings in the shaft. It is possible to adjust the restriction externally.

Turning the adjuster clockwise introduces the needle further into the jet, increasing the restriction.

REBOUND

Positive pressure inside the rebound chamber causes oil to flow through the bleed jet. A restriction occurs where the oil passes between the jet and the needle.

Oil flows through cross-drillings in the shaft.  It is possible to adjust the restriction externally.

Turning the adjuster clockwise introduces the needle further into the jet, increasing the restriction.

LOW-SPEED EFFECT

Low-speed
adjustable

This means the rate at which damping force increases in kg/ mms2 between 0kg and the knee can be adjusted externally.

Bleed jet

The One.Zero has one bleed jet that affects both compression and rebound damping.

Needle and a jet adjuster

The jet has a hole with a fixed diameter. The needle is the same diameter as the hole at its base and tapers to a point at its tip.

Open area

The jet flows in one direction only.

GET A QUOTE

    Zero Eyelet

    2.25″ ID 4″ Free Length (101mm) Standard Spring

    Metric coiling size 58.5mm ID to clear.

    All standard stock round section material springs are powder coated polyester gloss Black (RAL 9005)

    Learn more

    ZeroOne.ZeroTwo.Zero
    Price

    From £292.00 ea.

    excl. VAT

    From £413.00 ea.

    excl. VAT

    From £667.00 ea.

    excl. VAT

    Standard specification includes ∅15mm rod ends, coil-over hardware, aluminium bodies, linear piston and purple anodizing.

    Top-hat spacers and springs are not included. Deviations from the standard specification are priced accordingly.

    Standard specification includes ∅15mm rod ends, coil-over hardware, aluminium bodies, linear piston and purple anodizing.

    Top-hat spacers and springs are not included. Deviations from the standard specification are priced accordingly.

    Standard specification includes ∅15mm rod ends, coil-over hardware, aluminium bodies, linear piston and purple anodizing.

    Top-hat spacers and springs are not included. Deviations from the standard specification are priced accordingly.

    ConstructionAluminium monotube
    Also available with steel body.
    Gas-pressurizedYes
    External adjustmentNoOne-way
    Low-speed bleed.
    Two-way
    Low-speed bleed, independently adjustable in compression and rebound.
    Internal adjustment

    Low-speed
    Replaceable bleed jet.

     

    High-speed
    Independently adjustable compression and rebound shim stacks.

    Piston
    Linear and digressive variants available.

    High-speed
    Independently adjustable compression and rebound shim stacks.

     

    Piston
    Linear and digressive variants available.

    High-speed
    Independently adjustable compression and rebound shim stacks.

     

    Piston
    Linear and digressive variants available.

    Caliber1.625″
    RevalvableYes
    ServicableYes
    Spring∅2″ minimum. ∅2.25″ standard.
    Sold separately.

    want to know more?

    If you want to see what separates Quantum Zero shock absorbers from the competition on the inside, the comprehensive owner’s manual explains in detail how they operate, how to interpret dyno charts and offers practical advise on routine care and adjustment.

    Download the Quantum Zero Owner’s Manual

    Through the 90s and 2000s,

    the company has supplied teams in the:

    European Formula 3000

    Japanese Formula 3000 (later Formula Nippon)

    UK Formula 3 series

    German Formula 3 series

    French Formula 3 series

    European Formula 3 series

    Japanese GT championship

    Formula Ford

    UK club racing classes, including Sports 2000 and Mini Miglia.