• Rimpact Chain Damper - E-Bike image 1
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Rimpact

Rimpact Chain Damper - E-Bike

Rimpact Chain Damper - E-Bike

£129.99 GBP inc. VAT
£199.99 GBP £129.99 GBP inc. VAT
Sale Sold out
Taxes included. Shipping calculated at checkout.
Motor Type

Product Specs

Available in 30-36t 

Crank fitment - Shimano Direct Mount, SRAM 3-bolt, SRAM 8 Bolt, Raceface and Hope.

Chainline- compatible with Boost 52mm, T-type Transmission and DH 55mm, some superboost bikes. Reach out for more info.

Not compatible with 5-DEV cranks, Praxis Aluminium, Intend Rocksteady, Canfield or DMR cranks. Shimano Saint cranks are also not compatible (if you're unsure about compatibility and would like to check before purchasing, please feel free to get in touch - we're always happy to help).

 

Contents:

One Chain Damper, incl. chainring,  two sets of springs, bushes and elastomers. Also includes 1x pack of spare elastomers.   

30-32t units ship with trail springs installed and the stiffer springs included separately, with the opposite for the 34-36t units.

 

Compatibility:

Fits Boost and DH. Fits a range of chainguides and bash guards on the market. A small shim may be required behind the bashguard or BB or Crank Spindle to space it out. Suitable for some superboost bikes, reach out for more info. Compatible with 10, 11 and 12spd chains and T-type flat top Transmission chains. Direct mount cranks only.

 

Weight - 240g  including 32t chainring(an XT chainring in 32t is 120g) making the total weight increase just 120g for many users.

 

Service Intervals:

We've made every effort to design this product to last and be low maintenance. However, all high-performance parts need some kind of preventative maintenance to perform optimally. We recommend cleaning and regreasing the damper as soon as any noise or negative feeling occurs in the device. We also offer service kits and replacement chain rings that can be replaced by following this guide.

Should a squeak appear in the actuation, a small drip of chain lube around the seals of the damper should fix this. 

Looking for a replacement cover or mount plate? Send us a message and we can take it from there.

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Chain Damper Render

Isolates Feedback​

Removes unwanted drivetrain feedback when descending, resulting in a quiet and confidence inspiring ride with a chainless feel.

Chain Damper Render

​Improved suspension sensitivity and feel

With less drivetrain feedback, you'll become more aware of your bikes suspension movements, with an increase in grip and confidence. 

Chain Damper Render

Less rider fatigue

By isolating the rider from drivetrain feedback, you'll feel less tired at the bottom of a descent, allowing you to ride to your limit for longer.

Gif of the chain damper showing how a chain being pulled affects it

How Does it Work?

Chains have significant mass. This uncontrolled mass is free to flail, causing unwanted feedback and noise. We believe this plays a bigger part in unwanted ride characteristics than other sources of negative drivetrain feedback.

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The springs in the Chain Damper capture the chain's energy, smoothing out the ride.​​

 

The Chain Damper isolates the rider from  drivetrain feedback which is caused by the chain flailing as we descend.​ Bringing the chain under control allows the rider to be more closely connected to subtle suspension action.​​

EFBE Tested

Engineered to excel in the ISO 4210 fatigue test, the Chain Damper is built to handle all the force you can put through your pedals, whether you're on a power hour loop or racing full throttle on a big weekend between the tape.

  • Close-up of Rimpact Chain Damper attached to a white bicycle frame.

    Durable Rings

    Chain Damper Chain Rings have an eye catching natural finish due to the chemical reaction that takes place when Hard Anodizing T6-7075 Aluminium. This type III process adds a significantly thicker and more resistant coating compared to standard "type II" anodizing but limits the colour choice to a 'natural' or black finish.

  • Close-up of a the inside of the rimpact chain damper showing the silver coil spring inside a black and gold-toned housing, shown on a white background.

    Simple Servicing

    The Chain Damper has been designed to last a UK winter so you won't need to service it often.  It is is triple sealed and the sbody features a "labyrinth" design to minimize any water and dirt ingress. 

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    When it does come to servicing your Chain Damper, all you will need is a 3mm Allen key and some grease. Don't believe us? Check out the service guide here.

  • Close-up of a mountain bike drivetrain showing a Shimano Deerride crank arm, Rimpact Chain Damper, and rear suspension components on a mountain bike frame.

    Free From Creaks

    By integrating the chainring directly into the Chain Damper, we've achieved an incredibly stiff and creak-free design. The crank interface is built seamlessly into the front plate of the damper, allowing us to create the best possible product without being limited by the traditional BCD chainring design. This design ensures maximum durability and performance by eliminating unnecessary noise or flex.
  • Rimpact Chain Damper - E-Bike image 1
1 4

Rimpact

Rimpact Chain Damper - E-Bike

£129.99 GBP inc. VAT
£199.99 GBP £129.99 GBP inc. VAT
Sale Sold out
Taxes included. Shipping calculated at checkout.
Motor Type
View full details

FAQ

How does the Chain Damper pair with a high/low engagement hub?

It works great with both!  The Chain Damper works to reduce drivetrain feedback regardless of the points of engagement you have.

Does it work on a Hardtail too?

Yes, and arguably offers even more benefit due to the harshness of the solid rear end on Hardtails.

What Chainlines is it available in?

The Chain Damper is boost, T-type and DH compatible . Super Boost and other chainlines are mostly compatbible but you may need to adjust BB spacers to get the correct chainline. If you have a query regarding your particular bike please reach out and we can help confirm compatibility. 

Why isn't there a travel adjustment so I can customize the feel?

Put simply, this would break the device functionality.  Reducing the rotation angle by 25% will half the effectiveness of the device's ability to smooth out chain forces. We've precisely calculated the required rotation angle and spring rate to ensure maximum performance. You can however swap out between the two different spring rates included with your Chain Damper.

Which springs come preinstalled in my Chain Damper?

We ship the 30-32t units with trail springs installed and the stiffer springs included separately, with the opposite for the 34-36t units.

Is it compatible with my Chain?

As long as the chain is a 10,11 or 12 speed mountain bike chain that is also compatible with Shimano and SRAM 11-12 speed options then it will work. 

Does it reduce pedal efficiency or create a spongy feel?

No, once the springs are compressed moments after applying pressure to the pedals, the chainring is engaged and there isn't any efficiency loss or noticeable spongy feel. You'll feel a soft top out on the travel of the ring when lightly engaging the crank but this serves to further isolate drivetrain forces and vibration. 

Does it work with High Pivot Bikes and Idlers?

Yes. Idlers and HP bikes tend to have seat stays that sit super close to the chain undoing a lot of the advantages gained from reducing chain growth and shortening the amount of unsupported chain between the BB and the rear axle. If you watch high speed footage of these types of bikes you'll see plenty of chain slap and thus energy transfer into the frame and chain ring when riding rough terrain. The Chain Damper will still cut the majority of this feedback and noise from the drivetrain and produce a super smooth ride quality.