Prototype DBcoil Inline CSSafely stored in a padded Pelican case and hidden underneath their Eurobike display stand was one of just three examples of Cane Creek's DBcoil Inline shock. The handmade prototype features the same damper design used by the DBinline that most of us are already familiar with, including the clever CS switch that adds both LSC and LSR, but the shock is designed around a coil spring rather than the air spring that the production DBinline employs. That means that the shock pictured here is most definitely heavier than the standard DBinline, but Cane Creek says that it's also 149 grams lighter than the standard, piggyback equipped DBcoil CS in a 200mm x 57mm size. It's also close to being on par with the piggyback equipped DBair CS when you factor in Cane Creek's upcoming lightweight steel spring.
Cane Creek hasn't decided if they'll actually offer DBcoil Inline, though, despite what seems to be a growing consumer desire for coil-sprung shocks on mid-travel bikes. Part of the issue is that many contemporary bikes have been designed around air-sprung shocks and simply won't work well when you swap the air for a coil. That doesn't apply to all bikes, though, and there are certainly some riders who would benefit from the extra sensitivity and consistency that a steel spring will always have in hand over a lighter weight air-sprung setup. Cane Creek also did say that the DBcoil Inline, if produced, would cost less than other shocks in their lineup.
MENTIONS:
@CaneCreekCyclingComponents
Still, I would make an exception for CC.
The other problem is more of a Specialized-specific design issue. Specialized's fixed-eyelet yoke design increases the leverage on the shock by a considerable amount, and with predictably bad results. That lever-assisted side loading will chew through any shock. Source: I'm a wizard.
and I think even my air version is too linear without volume spacers, so I can't see an advantage with using coil on 95 % of all mid travel bikes...
The replacement has been holding strong under a lot of abuse so fingers crossed with 2 thumbs up to Cane Creek. I'm hoping that doesn't change to a middle finger!
@Broth-Ratchurch that is an interesting theory on the Enduro design. They've had that design for many years and have no documented issues with other shocks. Do you have any data other than the recent Cane Creek-specific issues to support this?
also PB had issues on the HD3 with a similar design
they started questioning it in their HD3 review as far as I can remember
From just a short bit of "google'ing" I was unable to find any serious data outside of the Pinkbike armchair engineers. If anyone finds anything else I'd be genuinely interested in hearing about it.
Do we have any suspension engineers in the audience???
@Socket Is it possible that these riders simply didn't properly maintain their bikes? I was a shop mechanic for several years and have seen first-hand how poorly people maintain suspension. Then they bring them in and wonder what's wrong?
@Callum-H You are incorrect about CC. There was a manufacturing problem the first generation DBInline.
As an owner of a 2014 Stumpjumper and 2015 Enduro I'm interested to get to bottom of this (I'm not a fanboy but damn I love my bike shop). I did have the bolt get loose when the bike was new but proper torque (5 nm higher than recommended) and red thread lock put a quick end to that.
www.benscycle.com/pdf/0000017543_R3.pdf
Save this link and refer to page 14. The only exception that I know of is I torqued (under the direction of the shop) #6 to 20 NM and not 10.5. I've not had a single issue since.
www.canecreek.com/resources/images/home/DBAG-blog.jpg
The climb switch is the red switch in the picture, so now all they need to do is make the adjustability adjustable
That would probably solve all the problems and seemingly would be easy since they are already working on new springs...