Most likely, but we need to know the year and model of your bike to ensure there is adequate clearance. Because the width of the Double Barrel's twin adjusters and large reservoir volume there are bikes that it won't fit. Having said this, we make a shock for any bike worth owning, so we've heard some say if the Double Barrel won't fit your bike, it's time to get a new bike. Click here for our Double Barrel fitment worksheet.
The length is correct but the lower shock eyelet needs to change to fit the Demo 8 unique rear link. This repair is rather involved, and must be completed by one of our service centers. Some distributors currently carry Demo 8-II-specific Double Barrels. Contact your local bike shop for more information.
Because it can be! Most other shocks have a rebound adjuster contained in the shock shaft. This requires a larger diameter shaft because the inside is hollow. The Double Barrel's rebound adjusters are in the cylinder head so a smaller diameter solid shaft can be used. To get even more complicated, most other shocks rely on the oil displaced by the shaft as it enters the shock body to provide external damping adjustment. The shaft has to be made artificially large to provide even a minimal adjustment range. The Double Barrel is different. It does not rely on the oil displaced by the shaft to provide external damping adjustment so having a smaller diameter shaft doesn't reduce adjustability.
The Double Barrel eliminates the need for "custom valving". The Double Barrel is so user adjustable that you (the rider) custom tune the shock yourself, to match your conditions, riding style, and trail/course. Instead of having to send the shock off for tuning, you just turn the external adjusters to dial in your unique settings. Because each adjuster is independent (for example: changing high speed compression will not affect anything besides high speed compression) the Double Barrel is remarkably intuitive to tune. A comprehensive instruction manual is included with each Double Barrel that explains how the adjusters work and how to get the most out of your shock.
No. In fact it's quite simple. Since the Double Barrel is the only shock that offers 4-way independent adjustment with no air pressure to change, it's as easy as turning an external adjuster.
No. In fact, about two-thirds of all Double Barrel's sold end up on trail bikes with under 7" of travel. So whether you ride a 5" trail bike or Downhill machine, the Double Barrel has you covered. If you haven't tried a DB on your trailbike, you are missing out.
Absolutely. Other than the need for lighter springs (Cane Creek specifies the correct spring rate based on your weight & bike), low leverage ratio bikes require lower damping values. Shocks "move" faster on lower leverage ratio bikes, so the damper force value at a given velocity must be lower than it would be for a higher leverage ratio bike. The Double Barrel's massive adjustment range allows these lower damping values to be achieved by simply turning the adjusters.
Again, absolutely. High leverage ratio bikes can give some dampers fits because of the slow shaft movement and large damping value requirements. Not the Double Barrel. The adjustment range is so wide, it can easily be tuned for even the highest leverage ratio bikes.
There is no need. Take your shock pump out of your backpack (unless your fork needs it!). The Double Barrel's sealed nitrogen charge is set at the factory and will not need adjusting
Pretty straightforward. See page 20 of the Double Barrel Manual for instructions.
Every shock is shipped at the settings we use to verify the shock's function on the dyno. These settings can be used as a starting point, though really any settings could be used as a starting point! The intent is for the rider to tune it to work best for them. Reference the included instruction manual for getting started tuning your shock. It is easy and fun!
The Double Barrel comes with hardware to specifically fit your bike. Generally, for a bike with a spacer bushing requirement over 1" wide we use a DU type bushing. For bikes under 1" wide such as the common 22mm x 8mm spacing we can use spherical bearings in the shock's eyelet unless the bike frame manufacturer specifies otherwise.
Yes. But only in 3" and 3 1/2" stroke lengths.
Measure your current bike shock as installed, fully-extended (ideally with rear wheel off the ground), from each mounting bolt center-to-center.
The feeling you get when pulling up on the seat is a good thing. Because of the linkage and bearings on the Demo 8, coupled with the design of the DB, there is almost no stiction in the linkage. If you have little or no pre-load on the spring and pull up on the seat, this will allow the rear wheel to drop freely to the end of the stroke and touch the top-out bumper – Think no resistance in the bearing pivots here, which is a good thing, as it's very supple and will provide plenty of traction. Now try adding 3-4 turns of pre-load to the spring and this feeling will then start to go away. This is because you now have bound energy in the spring extending the shock. We recommend at least 1-2 turns of pre-load on the spring.
The inner diameter of the bushings is the same for all Double Barrels, however the eyelet inside diameter can vary from model to model. The shock shown on the right with the older graphics has a 16.0mm eyelet bore. Shock on the left is a newer model with a 14.7mm eyelet bore. We have DU bushings available for both. The same bushing assembly tool will install and remove both sizes.
We recommend getting your shock serviced after 100 hours of use or annually.
First, make sure SAG is properly set, from 25%-33% depending on your bike and preferences. Then, adjust High Speed Compression (HSC) - turn the adjuster out in half-turn increments.
Our Tuning Field Guide is a good reference for all shock setup questions. Note that on the DBAir, the o-ring on the piston will not press against the piston head; the internal bottom-out bumper protects the air can with 3-5mm of piston distance.
If you are still unsure, please call our Customer Service team at 800-234-2725 or firstname.lastname@example.org.
Your DBair should be pressurized with a high quality shock pump. We offer this pump for sale at special pricing to DBair owners in our web store. We recommend air pressures that result in approximately 25-33% sag (see owner's manual for details). The air pressure required for this will vary greatly depending on frame size, rider weight, riding style, etc. Approximate pressures can range from ~100-250psi.
No. Adding oil through the air valve will expose the internal seals to the oil added. This interferes with the moving parts and seals, and will eventually lead to failure. Volume reduction spacers can be purchased through www.canecreek.com
We recommend servicing your air spring specific parts every 50 hours of riding. This is an approximate guideline and will vary based on environment, riding style, etc. Damper service interval is approximately every 100 hours of riding; similar to the DB Coil.
At this time the only shock designed to fit the Specialized Demo 8 is our DBcoil shock. Modifying a DBAir in any fashion is not recommended and will void the warranty.