Well, the snows melting and I finally got a few different rides in on the awesome new Ibis M3! :thumbsup: I built the bike around a new Mojo3 frameset, a replacement for my HD3, which after a season I had concluded was a bit overbuilt for most of the trail riding I do. In the process of the M3 swap, I lost .9 lbs in frame weight (vs. HD3-lg.) which is very significant to me. Most noticeable w/ the M3, in addition to being lighter is the rear end stiffness afforded by the boost rear, shorter CS, shorter links and the added stability of the lower BB. The bike climbs like a billy goat and tracks like it is on rails coming down. I have yet to bottom the rear suspension and it rides like it has more travel than 130 mm.
Initially, I ran a traditional 27.5 x 2.3 tire setup. The bike felt nimble and every bit a trail bike.
Then for fun, I mounted up a new NN 27.5 x 2.8 front tire and couldn't wait to try out the big meat (didn't get around to swapping out the rear tire to 27.5 plus). I rode the same trail as w/ the 2.3's, now w/ 27.5 plus front and same Rock Razor 27.5 x 2.3 rear and holy......, I cannot believe the ride inspiring confidence afforded by the plus size tire up front! The first impression I had is where is the motor, as in MX! I found myself mowing through rock gardens and over chunder that used to make my eyes jiggle, now instead it was like the trail obstacles were not even there! The increase contact patch and front end cornering traction is off the charts.
I should mention that I initially ran a Pike 150 fork, but felt that the steering was a tad slow, so I am now running the Pike at 140. Perfect. One observation w/ M3 is that the seat angle is quite steep, which required some getting used to for me as it makes riding at full seat extension feel very upright. The plus size tire up front seems to raise the front end just enough that the SA feels a tad more relaxed. By direct tire height comparison, I was pleased to learn that the Schwalbe NN 27.5+ is only 1/4" taller at the axle than its 2.3 counterpart, yet affords an actual tread width of about 2.6 (vs 2.2), all w/only a 100 gm +- increase in tire weight. So for now, I am liking this tire configuration and will try the plus tire in the rear next. The nice thing about the M3 (and HD3 boost swingarm) is that Ibis has given us tons of options!