Bike rear shocks are critical components for enhancing ride comfort and control, absorbing impacts from rough terrain and improving traction. They are essential for a variety of bikes, from rugged mountain bikes and versatile e-bikes to compact folding bikes and even scooters. Products were evaluated based on adjustability, material durability, application versatility, and feature analysis.
Bike Rear Shock, Air Pressure Shock Absorbers, 125/150/165/190/210mm, 20/30/35/50/60mm Travel, Hydraulic Rear Suspension Shock for Mtb/e-bike/Folding (150 * 30mm)
$52.90
This air pressure shock absorber offers extensive versatility across multiple bike types and features fine-tuning capabilities with its adjustable air pressure system.
Search on AmazonCNCLOL Mountain Bike Rear Shock 120mm/125mm/150mm/165mm/185mm/190mm/200mm,Bicycle Shock Absorber- Hydraulic Rear Suspension Shock for Mtb/Mtn/ebike/Dmn.
$43.98
The CNCLOL hydraulic rear suspension provides broad compatibility and reliable performance through its oil pressure spring system, presenting a solid value option.
Search on AmazonDNM AO-39RC Mtb Rear Shock Bike Air Rear Shock Rebound/Lock Out- Adjustable Air Pressure 165/190/200mm bike rear shocks (165mm)
$122.00
The DNM AO-39RC stands out with advanced rebound and lockout adjustments, coupled with a durable AL-7075 shaft, indicating a higher-performance design.
Search on AmazonLooking for the best Bike Rear Shocks?
Discover now our comparison of the best Bike Rear Shocks. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Bike Rear Shocks are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Bike Rear Shocks in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
- Application: DNM AO-6 mountain bike rear shock absorber is made of high-quality aluminum alloy material, wear-resistant and corrosion-resistant. Small size and light weight, suitable for mountain bikes, MTB, folding bike, scooters, etc.
- High Air Pressure: Main air pressure adjustment, the highest air pressure can reach 250psi, it is recommended to use a pressure gauge to inflate.
- Product Specifications: MTB Shock, Eye to Eye 100x9mm/ 125x20mm/ 150 x 31mm/ 165x41mm/ 190x51mm; Sleeve Dimensions: 8mm x 24mm.
- Good shock absorption effect: Classic shock absorber, easy to relieve bumps, suitable for all kinds of roads, 2 different sizes for you to choose, to meet your different needs.
- Purchase Notes: Please confirm the size of the complimentary sleeve dimensions (8mm x 24mm) fits before purchasing.
- Application: MTB Rear Shock, suitable for mountain bike, electric bike,Mtn,ebike,Dmn,bmx,scooters and other bikes modification.
- Product Specifications: Eye to Eye/Shock distance:120x15mm/125x15mm/150x25mm/165x40mm/185x45mm/190x50mm/200x60mm ； Load:550lbs,750lbs,1000lbs,Bushing Size: 8mm x 24mm.
- Performance: Bicycle rear shock absorber, the shock absorption is controlled by the oil pressure spring system, the shock absorption is soft, more stable, and the service life is long; It has the same shock absorption effect as air pressure shock...
- How to choose right specification?：1.First, check the distance between the mounting holes,Whether it can be installed or not.2.Check your weight,Choose the shock absorption effect that suits you.3.Depending on the road you ride,Choose the best spec for...
- Note: The greater the weight (pounds) of the rear shock on the bike, the greater the pressure required. Please measure the size of the hydraulic shock absorber and your own riding comfort weight to match before purchasing. If you have any questions...
- Compatibility:Chooee mountain bike rear shock absorber is made of high-quality aluminum alloy material, the surface is anodized, wear-resistant and corrosion-resistant. Small size and light weight, suitable for mountain bikes, MTB, DH, XC softtails...
- Feature:Chooee bicycle hydraulic rear shock absorber one-piece structure. The coil spring is used as the main body, and the hydraulic control spring is used to generate shock absorption, which has better shock absorption effect and durability than...
- Adaptability:After many repeated tests, our bicycle shock absorber has tested the most suitable weight range for riding, there are550pounds、 750 pounds and 1000 pounds, you can choose the pressure value that suits you according to your weight， Chooee...
- Product Specifications: MTB Shock, Eye to Eye 120x25mm/ 125 x 15mm / 150 x 25mm / 165 x 40mm/ 185 x 45mm/ 190 x 50mm/ 200 x 60mm; Load: 550lbs/750lbs/1000lbs; Sleeve Dimensions: 8mm x 24mm.
- Note:The load weight (poundage) of a bicycle rear shock absorber is proportional to the required pressure. Before purchasing, please measure the size of the hydraulic shock absorber and match it with your comfortable riding weight. If you have any...
- Versatile Compatibility: This rear shock absorber is designed to fit a wide range of vehicles, replacement for Dirt ATV Bikes, ATV Go Karts, as well as gas scooters, electric bikes, mini motorcycles. Suitable for displacement 49cc, 50cc, 70cc, 90cc...
- Material: Crafted from stable steel and aluminum alloy, this shock absorber features precision components, ensuring robust and durable performance. Rigorous quality inspections before leaving the factory guarantee its safety and reliability, promising...
- Clear Specifications: The product's specifications are clearly stated, boasting a length of 190mm and a 1200lb weight capacity. These precise details help consumers determine whether the product suits their specific needs, providing vital size and...
- Package includes: 1 x Rear shock damper; 2 x Screws, enabling quick and hassle-free installation. With these included accessories, customers can get their vehicles back on the road without the need for additional purchases.
- Attention: This universal rear shock absorber has no oil pressure, it is mechanical shock absorption. Please check the size carefully before buying
- Quadruple adjustmen: Precisely tune your ride with independent Rebound, Compression, Preload, and Air Pressure (200-300 PSI) controls. Optimize shock response for technical trails or downhill sprints
- High-impaact 550Lbs spring: 9mm-thick coil spring handles aggressive riding with 550LBS/in strength. Engineered for enduro/downhill MTB, e-mountain bikes, and intense off-road impacts
- Universal Futment: Fits full-suspension MTB, downhill bikes, and e-motorcycles (12mm mounting holes). Plug-and-play install if eye-to-eye length matches (190/210/230/240/250/265mm options)
- Protective impact absorber: Aluminum alloy body with buffer design reduces 35% component stress. Ensures stable handling on rocky terrains while extending drivetrain life
- Optimized weight & durability: Aluminum alloy cuts weight to 885-1074g (by size). Corrosion-resistant seals thrive in mud/wet conditions
- Application: MTB Rear Shock, suitable for mountain bike, electric bike,Mtn,ebike,Dmn,bmx,scooters and other bikes modification.
- Product Specifications: Eye to Eye/Shock distance:120x15mm/125x15mm/150x25mm/165x40mm/185x45mm/190x50mm/200x60mm ； Load:550lbs,750lbs,1000lbs,Bushing Size: 8mm x 24mm.
- Performance: Bicycle rear shock absorber, the shock absorption is controlled by the oil pressure spring system, the shock absorption is soft, more stable, and the service life is long; It has the same shock absorption effect as air pressure shock...
- How to choose right specification?：1.First, check the distance between the mounting holes,Whether it can be installed or not.2.Check your weight,Choose the shock absorption effect that suits you.3.Depending on the road you ride,Choose the best spec for...
- Note: The greater the weight (pounds) of the rear shock on the bike, the greater the pressure required. Please measure the size of the hydraulic shock absorber and your own riding comfort weight to match before purchasing. If you have any questions...
- Customizable Suspension Tuning: This rear shock provide Rebound, Compression, Preload, and High-Pressure Adjustments. Customize your suspension to match diverse terrains and riding styles, ensuring unmatched control and comfort.
- Durable Premium Materials: Crafted from 6066 Seamless Aluminum Alloy with forged joints, this rear shock combines lightweight design with exceptional durability to meet the demands of extreme rides.
- Versatile Frame Compatibility: Available in multiple stroke lengths (50mm, 55mm, 65mm) and eye-to-eye options (190mm, 210mm, 230mm), with an 8x24mm bushing size for a perfect fit and smooth operation.
- High-Performance Shock Absorption: Equipped with a 550 lbs coil spring for superior damping and resilience, and an adjustable air pressure range of 200-300 PSI to tackle rugged trails with ease.
- Built for Extreme Rides: Ideal for Downhill Mountain Bikes, E-Moto, and Electric Downhill Bikes, this rear shock delivers stability, control, and smooth performance on the harshest terrains.If you have any questions about the installation process, please...
- Features: DNM Pneumatic Shock Absorber, light weight, good quality, superior function, suitable for all kinds of bad road surface, AO-38RC can reach the highest air pressure up to 270psi!
- Product Specification: Adjustments Rebound / Lockout / Air Pressure Adjustable, Damper shaft Dark hard-anodized AL-7075 Ø 10 mm (0.39 inch) shaft. Dark hard-anodized AL-6061 shock body.Riding style XC /TRAIL, Available Size Eye to Eye x Travel 165 x...
- Improved: Air shock is much lighter than coil shock. This is a great upgrade from the old shock. It is precisely CNC machined to ensure no air or oil leaking. The negative air valve could possibly touch some frames, so DNM developed the new 38RC shock...
- Functional: Rebound Adjustment Knob +direction Rotation Increase Damper (Slow),- Direction Rotation, Decrease Damper (Fast). Compression Adjuster + Direction Rotation Lock-out,- Direction Rotation Open Up.main Air Chamber Supply Air Pressure According To...
- Barometric Recommendation: Weight 120 lbs - Main air chamber 90 Psi. Weight 140 lbs - Main air chamber 105 Psi. Weight 160 lbs - Main air chamber 120 Psi. Weight 180 lbs - Main air chamber 135 Psi. Weight 200 lbs - Main air chamber 150 Psi. Weight 220 lbs...
- Reference Size: Eye center to center distance is about 215mm/8.46inch. Mounting hole diameter is about 8mm/0.31inch.
- For 2 Stroke: This 215mm shock damper spring is suitable for 2 stroke quads, buggies, some pit bikes, mountain bike, bicycle, folding bike and more.
- High Quality Material: This shock absorber is made of high-quality steel material, precision parts, sturdy and durable.
- Main Function: Shock adjustable damper, shock strut has anti-oxidation and wear resistance, adjustable spring pressure, and a maximum load acity of 2000lbs, which can be improved according to your own riding experience to meet your needs on modified...
- Easy to Install: Shock absorber overall replacement parts are easy to install without any modification or drilling, easy to use, original worn shock absorber can be removed and installed directly, saving your time and energy.
- Application: MTB Rear Shock, suitable for mountain bike, electric bike,Mtn,ebike,Dmn,bmx,scooters and other bikes modification.
- Product Specifications: Eye to Eye/Shock distance:120x15mm/125x15mm/150x25mm/165x40mm/185x45mm/190x50mm/200x60mm ； Load:550lbs,750lbs,1000lbs,Bushing Size: 8mm x 24mm.
- Performance: Bicycle rear shock absorber, the shock absorption is controlled by the oil pressure spring system, the shock absorption is soft, more stable, and the service life is long; It has the same shock absorption effect as air pressure shock...
- How to choose right specification?：1.First, check the distance between the mounting holes,Whether it can be installed or not.2.Check your weight,Choose the shock absorption effect that suits you.3.Depending on the road you ride,Choose the best spec for...
- Note: The greater the weight (pounds) of the rear shock on the bike, the greater the pressure required. Please measure the size of the hydraulic shock absorber and your own riding comfort weight to match before purchasing. If you have any questions...
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Last update on 2026-04-09 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Bike Rear Shocks
Understanding Shock Type and Damping Systems
When selecting a bike rear shock, the primary distinction lies between air and hydraulic (or coil-over-oil) damping systems. Air shocks, such as the 'Bike Rear Shock, Air Pressure Shock Absorbers' (ASINs B0DJW2J7B7 and B0DJW3DJ11), offer significant tunability, allowing riders to adjust air pressure from 'soft to hard' to match their weight and preferred ride quality. This versatility is often preferred for varying terrains and rider preferences. In practice, air shocks tend to be lighter. Conversely, hydraulic rear suspension shocks, exemplified by the CNCLOL Mountain Bike Rear Shocks (ASINs B0F1FC2V9J and B0B8QT2K2W), typically rely on an oil pressure spring system. These are often known for their consistent damping characteristics and robustness, though they might lack the fine-tuned progressive feel of an air shock unless combined with additional features.
The Importance of Adjustability: Rebound and Lockout
Advanced adjustability significantly impacts a shock's performance. Features like rebound adjustment, as seen on the DNM AO-39RC, allow riders to control how quickly the shock extends after compression. A slower rebound (achieved by rotating the adjustment knob in the '+' direction) can prevent the bike from bucking over successive bumps, while a faster rebound can keep the wheel tracking better on technical climbs. Lockout functions, also present on the DNM AO-39RC, essentially stiffen the shock to near-rigid, making pedaling more efficient on smooth climbs or paved roads by minimizing power loss through suspension bob. Users report these features are invaluable for adapting to diverse riding conditions.
Compatibility: Eye-to-Eye Length and Travel
Correct sizing is paramount for proper function and bike geometry. The 'Eye to Eye/Shock distance' and 'Travel' specifications are critical. For instance, the 'Bike Rear Shock, Air Pressure Shock Absorbers' are available in various lengths like 125/150/165/190/210mm with corresponding travel options. Similarly, CNCLOL shocks offer a wide range from 120x15mm to 200x60mm. Mismatching these dimensions can lead to improper suspension articulation, affecting handling, frame clearance, and potentially damaging the frame or components. It's crucial to measure your existing shock or consult your bike's manufacturer specifications before purchasing. The application also dictates requirements; a longer travel shock like a 190x50mm might be suitable for a mountain bike, while a 125x20mm is often ideal for folding bikes or scooters.
Material and Durability Considerations
The construction material directly impacts a shock's strength, weight, and longevity. Aluminum alloy is a common choice, noted for its lightweight yet sturdy performance, as highlighted in the 'Bike Rear Shock, Air Pressure Shock Absorbers' descriptions. High-strength aluminum ensures stability and practical durability for various riding demands. Premium shocks, like the DNM AO-39RC, might feature specific alloys such as dark hard-anodized AL-7075 for components like the shaft, indicating enhanced wear resistance and precision engineering. While the Vkinman Universal Rear Shock Absorber and Suspension Spring (from other products) might highlight capacity (e.g., 1200LB), for performance shocks, the quality of the alloy and surface treatments are key indicators of long-term reliability.
Pros & Cons
Bike Rear Shock, Air Pressure Shock Absorbers, 125/150/165/190/210mm, 20/30/35/50/60mm Travel, Hydraulic Rear Suspension Shock for Mtb/e-bike/Folding (150 * 30mm)
Pros
- Highly versatile, accommodating MTB, e-bikes, folding bikes, and scooters with multiple size options.
- Air pressure adjustment allows fine-tuning from soft to hard, catering to rider preference and terrain.
- Constructed from lightweight yet sturdy aluminum alloy for durable performance.
Cons
- Lacks explicit mention of rebound or lockout adjustments, which advanced riders might seek.
- Requires a shock pump for air pressure adjustments, an additional tool not always included.
CNCLOL Mountain Bike Rear Shock 120mm/125mm/150mm/165mm/185mm/190mm/200mm,Bicycle Shock Absorber- Hydraulic Rear Suspension Shock for Mtb/Mtn/ebike/Dmn.
Pros
- Broad application suitability for a wide range of bikes including MTB, e-bikes, BMX, and scooters.
- Offers a comprehensive selection of eye-to-eye lengths and travel distances for various frame geometries.
- Utilizes a consistent oil pressure spring system for reliable shock absorption.
Cons
- Does not specify air pressure adjustment, limiting ride tunability compared to air shocks.
- Performance is controlled by a hydraulic spring, which may not offer the progressive feel of an air shock.
DNM AO-39RC Mtb Rear Shock Bike Air Rear Shock Rebound/Lock Out- Adjustable Air Pressure 165/190/200mm bike rear shocks (165mm)
Pros
- Features rebound adjustment, allowing control over shock extension speed for improved handling.
- Includes a lockout function for efficient pedaling on smooth terrain and climbs.
- Constructed with a dark hard-anodized AL-7075 shaft for enhanced durability and performance.
Cons
- Limited to specific eye-to-eye lengths (165/190/200mm), potentially less versatile for smaller bikes.
- While offering advanced features, the initial setup and tuning of rebound can be more complex for novice users.
Common Mistakes to Avoid
Overlooking Eye-to-Eye Length and Travel Compatibility
A common mistake is purchasing a rear shock without carefully matching its 'Eye to Eye/Shock distance' and 'Travel' to the bike's specifications. For example, installing a 150*30mm shock when your frame requires a 165*35mm, as offered by the 'Bike Rear Shock, Air Pressure Shock Absorbers' series, will fundamentally alter your bike's geometry, potentially leading to incorrect suspension action, reduced travel, or even frame damage. Always confirm these measurements.
Ignoring the Importance of Adjustability Features
Many riders overlook the value of features like rebound and lockout. A shock like the DNM AO-39RC, with its 'Rebound Adjustment Knob' and 'Lockout' function, provides crucial control over the ride. Failing to utilize or understand these adjustments means missing out on optimizing the bike's performance for varying terrains, leading to a less comfortable or less efficient ride than intended.
Misunderstanding Shock Type for Application
Selecting the wrong shock type for a specific application is another frequent error. While hydraulic rear suspension shocks, like the CNCLOL models, offer robust damping, an air pressure shock absorber (e.g., B0DJW2J7B7) might be more suitable if frequent fine-tuning for rider weight or terrain changes is desired. For instance, a folding bike might benefit more from a lighter, more compact air shock with precise adjustability for varied urban surfaces.
Disregarding Maximum Air Pressure Limits
For air shocks, ignoring the 'max 250 PSI' limit, as stated for the 'Bike Rear Shock, Air Pressure Shock Absorbers' and DNM AO-39RC, can lead to component failure or dangerous riding conditions. Over-inflating an air shock can damage seals and internal components, compromising its lifespan and performance. Always adhere to the manufacturer's recommended pressure range for safe and optimal operation.
