DNM Damping 2 System Mountain Bike Rear Shock 750lb - Durable Ride

In this review of the DNM Damping 2 System rear shock, the bottom line is simple: riders who want a robust, user-adjustable coil shock for XC and AM bikes will appreciate its strong spring rate and solid construction. The unit shines as a replacement for worn factory shocks because it pairs a 750lbs coil spring with separate rebound and preload adjustments, giving clear improvements in ride control and a noticeably firmer feel for rowdy trails. Installation is straightforward and the lifetime warranty adds confidence for long-term use.

Key Features

• 750lbs Spring Rate: Delivers firm support for heavier riders or aggressive trail use, reducing bottom-outs on big hits.
• 2-System Damping: Separate rebound and preload adjustments let riders fine tune the shock response to terrain and personal preference.
• Hard Chromed Shaft: The 10 mm hard chromed damper shaft resists wear and gives consistent performance mile after mile.
• AL-6061 Anodized Body: Dark hard-anodized aluminum construction combines lightweight design with a corrosion-resistant finish for long service life.
• Complete Hardware: Comes with top and bottom bushings plus an extra bushing and 8mm x 50mm hardware for a straightforward swap-in fit.
• Lifetime Warranty: Manufacturer backing removes worry about defects and supports the product's long-term value.

Who It's For

This shock is aimed at cross-country and all-mountain riders who want a durable, user-tunable coil option for mid-travel frames. It's a good match for cyclists upgrading an older bike, or for riders who favor a firmer, predictable rear end for climbing and aggressive trail sections.

Riders who need a very plush, ultra-lightweight or progressively softer coil for downhill-specific riding should look at other specialized options. Also confirm eyelet and bushing sizes on your frame before buying to ensure proper fit.

Pros & Cons

Pros

• Solid build quality with hard-anodized AL-6061 body that resists corrosion and abrasions.
• Clear performance gains reported in ride quality and control thanks to the 750lbs spring and rebound/preload tuning.
• Easy installation and included extra bushing and hardware make it a convenient factory replacement.
• Lifetime warranty provides strong assurance of durability and manufacturer support.

Cons

• Some riders describe the shock as very stiff, so it may feel too firm for lighter riders or those seeking plush suspension.
• Limited to basic rebound and preload adjustments rather than more advanced compression tuning.

Specifications

Brand	DNM
Spring Rate	750lbs
Damping	2-system (Rebound / Preload)
Damper Shaft	10 mm hard chromed
Body Material	Dark hard-anodized AL-6061
Bushing Sizes	Top 8mm x 24mm, Bottom 8mm x 24mm
Included Hardware	Extra bushing and 8mm x 50mm length hardware
Origin	Made in Taiwan

Our Verdict

The DNM Damping 2 System rear shock is a worthwhile upgrade for XC and all-mountain riders seeking a durable, tunable coil shock that improves ride control and resists wear. Its 750lbs spring and simple rebound/preload adjustments deliver reliable, firm performance, and the included hardware plus lifetime warranty make it a strong value for riders who need a dependable replacement.

Frequently Asked Questions

Will this fit my bike?
Check your frame eyelet spacing and bushing dimensions; the shock uses 8mm x 24mm top and bottom bushings and includes extra 8mm x 50mm hardware.

Is the spring rate adjustable?
The preload is adjustable to change sag and feel, but the coil is fixed at a 750lbs rated spring.

How durable is the finish?
The dark hard-anodized AL-6061 body and hard chromed 10 mm shaft provide good resistance to corrosion and wear for long-term use.