|By-Tor with new DynaSys stuff|
First up, I decided to switch from SRAM to Shimano DynaSys trigger shifters which are a big improvement over the SRAM bar end mounted on a Paul's Thumbie. Shifting in rough stuff was tough with the Thumbie, since it was so stiff, especially over older thumbies, like SunTour or Deore vintage examples.
DynaSys triggers can actually be actuated in a couple different ways, but the traditional "Rapid Fire" method works well with gloved hands. (At least I haven't had any issues with this) But the biggest thing is I don't have to move my hand from the grip much, if at all.
Next we have the Shadow Plus derailleur. The "Plus" part is what is cool. It is all about a little clutch mechanism in the pivot for the derailleur cage which can be switched "On" to prevent the cage from swinging and detensioning the chain over rough terrain. This is audible on "non-Plus" derailleurs as chain slap on your chain stay. But the big deal here is that since I run a 1 X 10, I may be able to ditch my chain watcher since it won't have to keep a flopping chain in check. The chain won't be flopping over rough stuff because the derailleur cage won't be swinging. Good stuff.
Out of the gate they measured 2.28", so with a bit of stretch they become 2.3"ers, which is a good, all around trail tire width.
The weight of these tires suggests that they may be pretty dang tough too. 860/870 grams for the pair. They are made by Maxxis and have what On One calls "ekso" sidewall protection. The sidewalls are thicker in the hand than many tires I've handled. The tires are definitely for bashing about, they have a nice, aggressive tread with an open pattern, and should prove to work well in tough conditions.
I have not had a chance to really put these to the test, so no ride reports yet, but I'll be back here with some observations soon.
Meanwhile, all the newest fat bike goodness has been slowly leaking out from Saddle Drive in Utah. The Salsa bikes will have some new features. Mukluks will now have Altenator drop outs, and there is a new model called the Beargrease. It has shorter stays, handles more like a traditional mountain bike, and weighs less than 29 lbs out of the box. Tapered head tube and frame tubing like a Mamasita. No Altenators on the Beargrease, which is a "race" version of the Muk.
Sounds awesome, but I'm fat-biked up for now, so I guess I'll be okay with what I've got here. Just wish my Titanium Muk had a 44mm head tube!