YT launched the Jeffsy MK3 last October. As you'd expect, the new frame had evolved in a number of areas compared to the MK2 version. But while the prevailing trend in the MTB market is to make increasingly capable bikes, YT made the surprising move to reduce the rear suspension travel by 5mm to 145mm.
Having been very impressed by the all-round trail riding capabilities of the MK2 Jeffsy (one of our best trail mountain bikes overall), I was keen to try out the new version. YT obliged by loaning me the Jeffsy Core 4 model for a few months of testing.
