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Scratch & Dent - ShockStop Suspension Stem

Regular price
$169.99 USD
Sale price
$119.00 USD

Scratch & Dent - ShockStop Suspension Stem

Regular price
$169.99 USD
Sale price
$119.00 USD

The patented ShockStop Suspension Stem smooths out road imperfections, reducing fatigue and strain. Whether you're on a local group ride, or exploring gravel back roads, the ShockStop Stem will make your ride smoother, faster, and more comfortable. 

DESCRIPTION

This is a Scratch and Dent product:

Our "scratch and dent" ShockStop Stems may have minor surface-level marks, dings, blemishes, or even our older logo. Functionally, these Stems are identical to their full-priced counterparts.

These Stems are not available locally in the UK, EU, AUS, and CA - please email us if you are interested in purchasing from one of those locations.

NOTE: Physical performance & durability are not compromised in any way. Scratch and Dent products are still covered under our Lifetime Warranty and our 90-day Risk-Free trial does apply, however, these items can't be returned based on their scratches, blemishes, or aesthetic appearances in general.

Additionally, you cannot apply other discount codes to Scratch and Dent units.

Benefits:

• Go further - reduce fatigue from bumps and vibrations
• Ride faster - energy that is normally wasted suspending your body is converted into forward motion

• Take control - customize your suspension feel to float over obstacles and maintain control over rough terrain

Details:

The ShockStop Stem is available in two angle options and two steerer tube diameters:
            - +/-6 degree in 80, 90, 100, 110, and 120mm lengths (in both standard 1 1/8" steerer and oversized 1 1/4" steerer)
            - +30 degree high-rise version in 80mm and 100mm lengths (only available fo 1 1/8" steerer)
• Effective suspension travel:
            - Up to 20mm
• Includes 5 swappable elastomers to fine tune your riding style
• Check technical specs for compatibility

What's in the Box:

1 x ShockStop Stem
5 x swappable elastomers (2 pre-installed, 3 additional in box)
All required hardware

+TECHNICAL SPECIFICATIONS
Weight

256 g +/- 6 deg, 80mm
266 g  +/-6 deg, 90mm
278 g  +/-6 deg, 100mm
290 g  +/-6 deg, 110mm
302 g  +/-6 deg, 120mm
253 g  +30 deg, 80mm
278 g  +30 deg, 100mm

For oversized steerer, add 2-5 g

Steerer Clamp Diameter (A)

Standard 1-1/8 inch (28.6 mm)
Oversized 1-1/4 inch (31.8mm)

Handlebar Clamp Diameter (B)31.8 mm
Effective TravelUp to 20mm
Material6061 T6 aluminum
Rider Weight Limit135 kg (300 lb)
Steerer Tube Clamp Stack Height40mm
+FAQ

How do I choose the right length and angle for my bike?

We put together a set of instructions that can help you determine the length and angle of your existing stem and provide guidance on what to chose based on riding style - check it out here.

How is the ShockStop Stem different from other suspension stems?

There are a lot of ways the ShockStop is different - so many in fact, we wrote a whole blog post about it. Check it out here.

How do I measure my steerer tube diameter?

The easiest way to determine your steerer tube size is to use a pair of calipers to directly measure the diameter or take your bike to the local bike shop and they will be able to measure it for you. Alternatively, most of the time a manufacturer will list this under their specifications in the Frame/Fork section. Make sure you are looking at the correct model year as these sizes can change year to year.
The 1-1/8" ShockStop Stem is the standard size used by most modern bikes. The 1-1/4” version can now be used on popular brands such as Giant and Canyon bikes.
 

To read more Frequently Asked Questions about the ShockStop Stem, click here.

+INSTRUCTIONS

Download Instructions (PDF):
Instructions - ShockStop Suspension Stem - 90-120mm lengths
Instructions - ShockStop Suspension Stem - 90-120mm lengths (Torx Bolt Version - Torx Tool Included)

Instructions - ShockStop Suspension Stem - 80mm length

Installing the ShockStop Stem (see below for 80mm elastomer install details):

 



Elastomer Install and Removal for 80mm ShockStop Stem:

 

Elastomer Selection Chart:

(See instructions and video for elastomer installation details)


 

The above chart provides a good starting point when first setting up the stem. The chart below shows the full list of elastomer combinations, in order of increasing stiffness:

X

There are two different optional mounts available: the Computer Mount, and the Utility Mount: 

The Computer Mount is an integrated mount that is compatible with your Garmin, Powertap/CycleOps Joule, CatEye, Mio/Magellan, Polar, or Wahoo bicycle computer (for options not in drop down, please email us at support@redshiftsports.com).

The Utility Mount puts a small section of tube in front of the stem that provides a location to mount anything you would normally put on your handlebar (bike computer, phone, light, etc.). 

 

The ShockStop handlebar clamp is 31.8 mm which is compatible with many modern bikes, without the need for shims. However, some bicycles have different size handlebars which may require the use of shims to fit properly into the ShockStop handlebar clamp. We have shims available for 26.0 mm and 25.4 mm handlebar sizes. 

- 25.4 mm is common on bikes with flat handlebars.
- 26.0 mm is common on older road bikes with drop handlebars. - There are other less common sizes that we do not provide shims for. However, other handlebar shim sizes may be available at your local bike shop. 

- Note that some mountain bikes have “over-sized” 35 mm handlebars which are not compatible with the 31.8mm clamp and would need to be replaced with a 31.8 mm handlebar in order to be compatible with the ShockStop Stem.



The easiest way to determine your handlebar size is to see if it's printed on the handlebar. This will require removing your current stem faceplate. 

 



If you can't find the printed size, there are a couple ways you can measure your handlebar: 

Best method: Use a pair of calipers to directly measure the diameter or take your bike to the local bike shop and they will be able to measure it for you. 

 



Alternate method: Use a fabric or paper measuring tape (or print one at https://printable-ruler.net/ ) and measure the circumference of the handlebar right next to your existing stem. 

- A 31.8 mm handlebar will be 99.9 mm in circumference at the center.
- A 26.0 mm handlebar will be 81.7 mm in circumference at the center.
- A 25.4 mm handlebar will be 79.8 mm in circumference at the center.


Keep in mind that 25.4 and 26.0 mm are very close in size. 

 



If you are not able to measure your handlebar, and you know the make, model, and year of your bike, you may be able to find the handlebar size online at your frame manufacturer's website.

The ShockStop is available in two different Steer Clamp options: 1-1/8” and the new 1-1/4”

The 1-1/8in ShockStop stem fits standard 1-1/8in (28.6mm) steerer tubes which is the size used by most modern bikes. With the introduction of our new 1-1/4” version the Shockstop can now be used on popular brands such was Giant and Canyon bikes.

The easiest way to determine your steerer tube size is to use a pair of calipers to directly measure the diameter or take your bike to the local bike shop and they will be able to measure it for you.

If you don’t have easy access to either a shop or a set of calipers you can check your manufacturers website. Most of the time a manufacturer will list this under their specifications in the Frame/Fork section. Make sure you are looking at the correct model year as these sizes can change year to year.

Alternate method: Use a fabric or paper measuring tape (or print one at https://printable-ruler.net/ ) and measure the circumference of the handlebar right next to your existing stem.

  • A 1 1/4”(31.8 mm) steerer clamp will be 99.9 mm in circumference at the center.
  • A 1 1/8” (28.6mm) steerer clamp will be 89.9 mm in circumference at the center.
  • A 1” (25.4 mm) steerer clamp will be 79.8 mm in circumference at the center.

Stem Angle 

The ShockStop is available in two different angle options: +/-6 degrees and +30 degrees. 

In general, you'll find the +30 deg stem provides a more upright, comfort-oriented fit, whereas the +/-6 deg stem puts you in a more performance-oriented riding position (standard for a typical road bike). 

The +/-6 deg ShockStop can be flipped so that it's angled slightly upward (+6 deg) or slightly downward (-6 deg). The +30 deg ShockStop should only be installed in the angled upward position. 

 



Stem Length 

If you chose the +30 deg ShockStop, you will need to choose either the 80mm or 100mm length option.  

If you chose the +/-6 deg ShockStop, then you will need to choose one of 5 different length options: 
 

- 80mm = 3.2 inches 
- 90 mm = 3.5 inches
- 100 mm = 3.9 inches
- 110 mm = 4.3 inches
- 120 mm = 4.7 inches 

Here's some guidance on the length selection: 

1) If you are replacing an existing stem and want to match it, then start by seeing if the length is printed on the stem. Choose the length of ShockStop that most closely matches your existing stem's length. If the length is not printed on the stem then go to #2. 

2) You can measure the length of your existing stem as shown in the following picture. The length is measured from the center of the handlebar to the center of the steerer tube. 

 



3) Once you determine the length of your existing stem round to the nearest 10 mm and choose the closest match. 

4) If you are unable to measure the length of your existing stem then choose 90 mm. This is one of the most common lengths and tends to be a good fit for most people.

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