DNM Damping 3 Mountain Bike Air Rear Shock - Adjustable Rebound

In this review the DNM Damping 3 air rear shock is presented as a practical upgrade for XC and trail riders who want a simple, adjustable replacement shock that balances weight and function. The single biggest reason to buy is its combination of adjustable rebound, lockout and air pressure settings in a lightweight package, which gives tunability usually found on higher-priced shocks. Riders replacing a worn unit or fitting a discontinued original will appreciate the included bushings and straightforward controls.

Key Features

• Adjustable rebound: A clearly labeled rebound knob lets the rider slow or speed up damper return with simple clockwise or counterclockwise turns for on-trail tuning.
• Lockout/compression control: The compression adjuster provides a lockout position for efficient climbs and a full-open position for rough descents, offering practical on-the-fly versatility.
• Air spring tuning: Main and negative air chambers accept pressure to match rider weight using the supplied guidelines, giving a wide range of spring feel without changing coils.
• Lightweight construction: Dark hard-anodized AL-6061 shock body and AL-7075 damper shaft keep weight low (about 0.4 kg for the 165 mm length) while retaining structural durability for XC and trail use.
• Multiple sizes and bushings: Available in eye-to-eye 165 x 35 mm, 190 x 50 mm and 200 x 55 mm with extra bushing hardware included to fit a variety of frames and replace common discontinued options.

Who It's For

This rear shock is aimed at cross-country and trail riders looking for a cost-effective, tunable replacement or upgrade. It suits riders who value adjustability and a lightweight component that can be dialed in for different weights and terrain, and those fitting nonstandard lengths thanks to the included extra bushings.

Riders seeking race-level, highly tunable damping platforms with extensive external adjustments or very plush all-mountain travel may want to look elsewhere; the DNM focuses on solid everyday performance rather than exotic, race-specific features.

Pros & Cons

Pros

• Good range of tuning: rebound, lockout and air pressure allow useful tailoring for different riders and terrain.
• Lightweight aluminum construction keeps overall bike weight down for XC and trail bikes.
• Includes extra bushings and hardware to accommodate different mounts and sizes, making installation easier.
• Positive customer feedback notes ease of installation and value compared with OEM replacements.

Cons

• Not a high-end race shock with many external adjustments, so very fine tuning options are limited.
• Instructions and setup require careful reading of the pressure recommendations to get the intended feel.

Specifications

Brand	DNM
Adjustments	Rebound, Lockout (compression), Air pressure
Damper shaft	Dark hard-anodized AL-7075, 10 mm
Shock body	Dark hard-anodized AL-6061
Available sizes (eye-to-eye x travel)	165 x 35 mm, 190 x 50 mm, 200 x 55 mm
Weight	0.4 kg for 165 mm length
Included hardware	Top/Bottom bushings 8 x 24 mm and extra 8 x 50 mm hardware

Our Verdict

The DNM Damping 3 rear shock is a practical, value-led choice for XC and trail riders who need a lightweight, adjustable replacement that installs easily and covers a broad range of rider weights. With clear rebound and lockout controls plus detailed air pressure recommendations and included bushings, it represents solid value for those wanting dependable trail performance without the premium price of race-level shocks.

Frequently Asked Questions

Can I use this as a direct replacement for discontinued OEM shocks?
Often yes; the shock ships with extra bushings and hardware to match common eyelet sizes, but confirm physical eye-to-eye and travel measurements before purchase.

How do I set air pressure for rider weight?
Follow the included barometric recommendations: for example, about 90 psi main chamber and 50 psi negative for a 120 lb rider, with pressure increasing by rider weight per the supplied table.

Is the lockout suitable for climbing?
Yes; the compression adjuster provides a lockout position to firm the shock for pedaling efficiency on climbs and an open position for descents.