I completed a couple tweaks to my Surly Krampus last year that I haven’t documented yet. With bikepacking trips getting scheduled and nice weather heading this way I figured it was about time to blog about the changes.
First up swapping in a Blackspire 34T chaining for the 36T unit I had on there all summer.
Always nice to use parts made at home. 🙂
Having a lower bottom gear will help occasionally, but the real benefit is that it moves my entire gear range lower and allows me to use the upper 8-14 gears more often. This range only engages one of the two planetary gears inside the Rohloff so they are more efficient.
I already had a Surly Tugnut on the driveside of the bike.
But, I needed a longer QR if I was going to use a second Tugnut on the other side. This is a front OMM QR that fits great on the rear of my Krampus without a rack to mount.
The theory goes you only need a tugnut on the driveside to resist pedaling forces, but in practice I have found that what is happening is since the driveside is fixed when I pedal hard I am pulling the rear of the cog closer to the front of the bike which makes the rear wheel pivot on the single tugnut moving the non-driveside end of the QR forward. Given the fat 3″ tire and the relatively tight clearance between the chainstays this is a bad thing.
I did try a high clamping force Shimano XT QR and removing the paint to rough up the clamping surface. Neither worked. Using the second tugnut has solved the problem while adding a second beer bottle opener! 😉
My Krampus is getting very dialled. That’s great because I can grab it anytime I have some touring to get done and know I have a solid rig to carry me through the adventure. However, it is fun to tinker a bit so I do have a couple projects that may see the light of day in 2014:
- Get some Surly 2.75″ knobby Dirt Wizard tires.
- Mount up the RockShox Reba RLT I had on the On One Scandal 29er.
Knard tires work pretty well, but they can get overwhelmed in muddy and/loose conditions due the lack of any serious knobs. Surly is about to release a 29 x 2.75″ tire that has more aggressive knobs and is slightly smaller although still pretty darn big compared to “normal” 29er rubber. I figure it’s the worth the $$ to try a set and see how they perform.
The because the Dirt Wizards are a tad narrower I shouldn’t have to modify the arch of my Reba to allow them to fit. At least that’s the theory! 😉
I don’t feel like a suspension fork is absolutely necessary on the Krampus, but it’s paid for so why not see what happens?