When I took the Jeffsy out for a few rides, I was looking to really push its limits, and I had to constantly remind myself that it was a trail bike, and not the super enduro/freeride rig that I’m used to riding. My personal bike is an aggressively built Pivot Firebird.
I was impressed by many of the handling characteristics, specifically the stability and noticeably forgiving manual sweet spot. To elaborate, I love to do wheelies and manuals during any sort of ride. It is one of the first things I do when I get on a new bicycle. Within the first couple pedal strokes aboard the Jeffsy, I’m pulling up the front wheel. Right away, I felt like I had entered some sort of cheat code that allowed infinite wheelies! This obviously translated into a lot of fun out on the trail, where I also noticed an increase in confidence while riding my favorite skinnies, and other slow, technical lines.
Traction, predictability and stableness are all complimentary adjectives I would use to describe the Jeffsy. In fact, the traction was so good it almost made easy trails where drifting and corner slashing helped pass the time even less fun. The bike just wants to track and charge.
Some of the features I did not enjoy are also some of the reasons I do not own a trail bike. I tested an XL frame, which is appropriate for my 6’3” carcass, but apparently not the right fit for my riding style. The seat tube height would be fine for someone who keeps the tires on the ground, but I could not get into my preferred positions when jumping, cornering, or descending the gnar. Having the seat bump you as you try to get low isn’t a confidence-inspiring feeling no matter how good the geo is.
I also felt the lack of muscle in the front end when I got into rougher, higher speed terrain. The non-boost 34mm stanchion fork seemed to limit the capability of the overall ride, but makes sense when building up a lighter weight, and less expensive trail bike. It was a compromise that we felt could be an issue for heavier riders or those who live to get rowdy.
YT’s bicycles have a lot going for them. They have incredible value, an edgy image, sexy lines and ship right to your door almost ready to ride. But making a truly memorable riding bike takes more than checking off the right build bits, geometry numbers and athletes.
The Jeffsy is a good all around bike, but that’s really about it. Our complaints are pretty minor in reality, but nevertheless, in a time when so many brands are making good riding bikes, something needs to stand out to make it a contender in our book. Beyond the value, nothing about the Jeffsy 27’s ride begs us to keep it in the van for the next ride. That being said, the bikes we’d pick over the Jeffsy do cost $3-4,000 more. This has us wondering if a lower spec’d Trek or Pivot would still be calling us over the YT, we think they might if the suspension spec was comparable.
The YT Jeffsy 27 is priced right, spec’d with a killer build, and looks good. While it does a lot of things well, it doesn’t do very many things great. The tall seat tube kept us from feeling super comfortable in the super steeps or jump trails and the non-boost fork left the front feeling a bit under-gunned.
If you ride lots of rocky, high speed terrain with square-edge hits, the very progressive spring rate will have you feeling a bit skittish but if you’re a drop sender, jump hucker or weigh more than 185lbs, you’ll love the bottom out resistance. Traction, stability and predictability are strong suits of the Jeffsy 27 on all but the roughest of trails.
If you’re debating between the Jeffsy 29 or 27, we’d probably put our vote towards the 29 if you live in smoother areas or spots with lots of long flowy jumps.
Weight: 29.97 lbs