PINKBIKE FIELD TEST
YT Jeffsy Base 29
Words by Mike Kazimer, photography by Anthony Smith
YT's base model, aluminum-framed Jeffsy received an update earlier this year, and it now has the same geometry as its more expensive carbon siblings, as well as an updated frame shape. From a distance, and even up close, there's nothing about this bike that scream 'budget' – it has the appearance of a much more expensive machine.
The 29” version we tested has 150mm of rear travel that's paired with a 150mm fork, which gives it a 66-degree head angle. There is a flip chip that can be used to steepen that number by half a degree, but I'd imagine the vast majority of riders will stick it in that low setting and call it good. Other key geometry numbers include a 77-degree seat tube angle, a 470mm reach for a size large, and 435mm chainstays (the XL and XXL models have 440mm chainstays.
YT Jeffsy Base 29 Details• Travel: 150mm rear / 150mm fork
• Aluminum frame
• Wheel size: 29" (27.5" model available)
• Head Angle: 66° (
geometry)
• Seat Tube Angle: 77°
• Reach: 480mm (L)
• Chainstay length: 435mm (size L)
• Sizes: S, M, L (tested), XL, XXL
• Weight: 34.4 lb / 15.6 kg
• Price: $2,299 USD
•
www.yt-industries.com YT's consumer direct business model helps them keep their prices down, and for $2,299 the AL Base model is quite the deal. Component highlights include a RockShox Yari RC fork and a Deluxe Select shock, Guide T four-piston brakes, a SRAM SX 12-speed drivetrain, Maxxis Minion DHR II tires, and there's even a Race Face bar / stem combo with ODI lock-on grips.
ClimbingThe Jeffsy hits the mark as far as how a trail bike should feel – it has a comfortable pedaling position for spinning along on those long dirt road grinds, and there's a satisfying level of zippiness to its handling on tighter, more technical singletrack. Mike Levy and I both settled on running 25% sag independently of each other – that number makes the bike sit a little higher in its travel, and provides a level of support that worked well on the climbs and descents.
At 34.4 pounds the Jeffsy Base isn't a flyweight, but it's one of those bikes that rides lighter than what the scale says. A good part of that has to do with the geometry – it's not a super long, super slack sled, and the quicker handling makes it easy to forget that it's packing a few extra pounds compared to higher end models.
Descending
Compared to the Santa Cruz Hightower and the Commencal Meta TR, the Jeffsy has a more nimble, lively feel to it on the trail. The geometry numbers are quite similar between those three bikes, but the Jeffsy felt most at home zigging and zagging down the trail and popping off of sandstone outcroppings whenever possible rather than bombing straight ahead.
YT have created a very balanced and versatile trail bike, and as Mike Levy said, “It handles itself well on the rough descents, it handles itself well on the tight slow descents and in the berms; it's just an overall really good, easy to live with geometry package.”
The geometry is right on target for the Jeffsy's intended purpose, and for the most part the parts selection leaves little to be desired. There were a few small gripes, though. One of them has to do with the Fidlock water bottle. While it's great that the Jeffsy can carry a bottle at all, grabbing that bottle on the fly is a challenge. It takes a well timed twist and pull, and the positioning means that you'll be hunched over and reaching pretty far down while trying to accomplish all of the necessary movements.
It'd also be nice if that SRAM SX shifter was Matchmaker compatible, a recurring theme on the bikes equipped with this shifter, and I personally didn't get along with the SDG saddle, but otherwise it's dialed in and ready to roll right out of the box. Speaking of boxes, the Jeffsy comes with a nice box of tools to help facilitate the build. There's a shock pump, an 8mm allen, and even a T-handle torque wrench.
So seeing such test from a mainstream bike media is really promising. Thank you PB.
It's great to see value-priced options now that modern geo has become the standard.
Who tf are you? Yogi Berra?
That said, anyone who is trying to say that an aluminum 35lb jeffsy in 2020 rides anywhere near as well as the carbon version with higher end components is full of crap.
And then Microshift came out with Advent X, saving all these unfortunates from the bull shit that is SRAM NX/SX group sets. That alone would drop the weight of this bike by half a pound!
There is clearly an exponential increase in cost versus a marginal increase in performance. But at the end of the day, if you can afford it, that marginal performance increase is there. The great thing is how far tech has trickled down such that lower-end bikes are pretty great these days. I personally find midrange (GX, maybe X01 builds) to give me a good balance of bang for the buck.
I guess the cool thing to me is that modern high-end, lightweight bikes really do allow you to “climb like an XC bike” and “descend like a DH bike.” Yesterday I climbed 2500 feet over about 4 miles on a carbon Patrol, then descended the same. The climb was hard but tolerable and the descent was a riot. Ya, prices are pretty nuts. But bikes are so capable these days!
There will always be those willing to pay a premium for marginal gains, whether they’re racing or whatever. Nothing wrong with that. Without those people, the tech may never be developed that trickles down to affordable bikes like this. “Expensive” is relative to income, and frankly anyone who can afford anything reviewed on Pinkbike is living a privileged life. Literally none of it is a need.
SX on any other Brand: This is horrible, low-end componentry that should be banished to the 7th circle of Hell. What a bunch of cheapskates these companies are for including it in these builds and charging these prices. To the scrap heap with this garbage!
SX on YT: This is a perfectly acceptable level of componentry! Just ride it until you wear it out then replace it. Haha! Nothing to see here!
That isn't it at all. NX/SX group set are a screw over to anyone who want's any kind of real drive train on their bike. Uneducated, new riders hear wide range from their buddies, see it on the new bike and figure they have that check box covered. Only to find out they are stuck with the out dated Shimano HG spline.
Thankfully Microshift came out with their wide range 10 speed. A welcome remedy to every consumer who got boned by SRAM and manufacturers with this garbage.
It was "just" a GX Eagle. Well, I was asked yesterday by some guys at the trails why I did not replace it with an XX1 unit. By all accounts, the only thing that makes XX1 more desirable is lower weight, not in any way performance. So, being as this is my fourth rear der. in some period of time (all GX), why on earth would I want to spend $200 more on an XX1, not get better performance and then get upset if and when it gets broken?
I can not speak to the performance of GX over NX, but, is it really that much of a variable?
I can't thumb up this enough. I'd say it puts a firm, if not final, nail in the arguments had here and other places about industry mark up/gouging. A quick look up shows that manufacturers know exactly how crap this is and try to hide it.
Santa Cruz Bronson. They show the cassette as SRAM PG1230. Funny how when it goes up to Eagle, they proudly display the GX and higher naming. That is a $3,500 bicycle. A couple of years ago that would have come with a GX drive train. And don't even get me started on those cheap bastards at Kona.
I bought it without test riding it (I had a go at 1st gen capra and there was no chance to try the jeffsy) and I don't think I would have got if I had tested it beforehand. It just feels weird, it's a 140mm 29er which seems to feel the best on smooth flow trails with berms and jumps. In that setting it's great (altough why would you buy a 140mm 29er for jump trails?!) but for rocky natural trails (those I enjoy the most) it just feels like it has about 100mm of very stiff travel. It's skittish and nervous. Depending on what sag I'm running it either feels really harsh and climbs well or feels more comfortable but dead and climbs like crap. The combination of short reach, very progressive rear end and quite linear Pike up front creates this weird imbalance where you just feel like the bike is constantly trying to flick you over the handlebars whenever you ride something steeper ... I tried playing with the suspension setting which helped but not a lot. To be honest, I always feel perched high on top of it which doesn't add confidence when riding some steep sections of the trail. This is probably partially caused by the combination of short 425mm reach and 5'9" rider.
It's not a bad climber for long sustained climbs on fire-roads (something I try to avoid like a plague) but when climbing technical trails it is difficult to accelerate quickly before technical features (I know, inertia of 29" wheels) and it always wants to sit deep in the travel.
For me, it was a let down. Probably the geo just doesn't fit me and I'm using it in places where it cannot shine. I'm really curious how it compares to the 2nd generation. Based on the reviews, it seems like they fixed a lot of the things I don't like on my 1st gen. I'm due for a new bike and I was super impressed with the YT customer service but I'm not sure I wan't to make the same mistake again ...
I can confirm that it was indeed a stiff, skittish beast in its stock setup and this is partly the reason why other manufacturers ask a higher price: they work with the suspension partner to tune it to work well. And YT is an outlet for suspension (and other) parts, hence the mk1 Jeffsy having non boost fork but boost rear.
That being said: once i had a different suspension setup as well as a higher rise bar and some better wheels going it was really, really good (and all in all still way cheaper than any bike in its class). Yes, it's still firm due to the very high progressiveness in the kinematics, but it can take a proper beating and it's just so damn lively. Some say only a coil shock releases its true potential but i never got around to try that.
Yes, it has flaws but for me it's still one of the best trail bikes i've ever ridden.
Get a Dvo Topaz.
Get Offset Bushings
Get a Vorsprung Luftkappe
Run the fork at 150mm
This whole treatment will run you about $400 if you get used parts. It will completely transform the bike.
If you went and bought something else you'd still have the same stock bike.
‘Base’
In terms of value, it was off the scale good at the time. It allowed me to sample some top end components and I have better idea what is and what isn't important for me (I like good brakes and suspension and I'm really not bothered about drivetrain as long as it works). To be honest, if I had added about 300EUR on top of what I paid I could have got an aluminium Trek with components 2 levels below of what I got from YT. Now the big question is if I would have been better served with a bike which didn't have great components but was better fit for my body and my stile of riding. Maybe yes, who knows ...
But yeah, it definitely though me a lesson about testing before buying. One of my mates is a testing maniac and out of tens of bikes he tested he picked a one that didn't look all that good on the paper but it just felt great for him, he fell in love with it and that was that. I guess I just need to think less about value for money and just try few bikes and find the one I will enjoy ... I just really hope I won't find in love with a Yeti, my credit card would have me for that :-D
So I feel ya, man. If it makes you feel any better, I did test a Yeti a couple years back, and wasn’t overly impressed, so your wallet might not need to worry!
I bought a new, 28lb first generation CF1 27.5 for $3000 (end of year sale knocked $600 off the MSRP). The 1st gen. 27.7 models had modern geometry, longer reach and the seat tube isn't too high at least on the size medium frames).
I rode the bike stock for a season and found the overall concept to be spot on for everything from slow grinding tech trails to high speed enduro tracks and everything in between (but not the right bike for true DH terrain, clearly). Then I up graded with a Topaz and installed a 160mm air spring in the fork to make the bike even more capable for tech riding. I found 30% sag to be perfect for high speed tech and 25% sag for lower speed XC type trails and jump/berms.
A pro level bike for $3500 bucks. Best bike related purchase I ever made.
Oh, and the frame may not be the best in class, but a proven Horst link performs well (many riders prefer more progression, that's why volume spacers front and rear are so common). And the linkages are very easy to service at home with basic tools. That will save the average rider cash over time as they won't need to pay somebody else to service the linkages.
Last thing, the saddle weight under 240 grams. Its no less comfortable than most other light saddles. Works fine for me with the nose tipped slightly down.
Overall a great review by PB. One question though, was the bike tested with tubes installed? Did the Meta TR come tubeless? This would explain the weight difference, otherwise the added heft is a drawback, but the Meta TR comes with a Revelation Fork (a motion control Pike), vs the burlier Yari on the Jeffsey (a motion control Lyric). Apparently the party is in the rear on the Meta (burlier frame linkages, but unacceptably short travel IMO) while the party is in the front on the Jeffsey (and you can drop a Charger damper into the Yari later).
I have one of those non-boost pike front ends. Really, I could care less. I'm not so hard on my bike that I'm tacoing wheels, and I am perfectly happy with the performance of the Pike (after I added a volume spacer). The bike climbs well for what it is (it could use a shock with a lockout on long climbs), handles well enough, and takes anything I throw at it. My only complaint is that the bottom bracket is a bit low for my local trails. Even with the chip in high position I still pedal strike roots more than I'd like. Probably need to reduce my sag a bit I guess.
As for the above build. Another great value from YT with the exception of the SX/NX combo. Suuuuch bull. I don't care if you are direct to consumer or Santa Cruz, this garbage belongs on department store bikes, not high end equipment. Tack on another $167 for the microshift setup and you have a winner. But, then your price goes up.
2. Fox US is not fox germany or fox france.
Fox US SELL its products to euro distributors, who sell it to shops. Distributors have to make a liitle benefit even if they should make money on sales volume, not on the product itself.
If FOX sold directly to euro shop, prices will lower a bit due to no distributors, but unless they build their stuff in Europe, prices will still be higher in Europe.
Conversely, euro stuff is overpriced too in US for same reasons. Just ask the price for a DT 240s hub in USA and you will get a stroke.
Hmm, while Matchmaker is great (I've used it on last 3 bikes, even finagling adapters for Hope brakes), it definitely has less positions available than separate clamps.
Can I buy a different clamp separately?
Yes the clamp is available separately if your bike came with Matchmaker. In fact, I think wolf tooth or pnw components or someone makes a sram-compatible split clamp so you don't even need to remove your grips.
I feel a bumper sticker coming on: Just Say No to SRAM NX! Or, a circle with the cross through it and NX in the center.
Spoiler: It’s aaaaaaall the rider.
Also
It’s 2020 ditch the water bottle altogether
It’s 2020 ditch the water bottle altogether
THIS! I'm shaking my head reading about effing with a water bottle while riding. I just reach for my tube, hanging from the strap of my backpack, while riding and not missing a beat, take a drink and literally let it go. I know it isn't popular here, but I feel the same way about bro packs. You still have to screw with getting water while on the move or even stopped.
Still loving my 2014 trance. Planning on getting another year or two out of it before pushing it off a cliff. I've replaced everything except the cranks. It doesn't have the best pedaling platform but my rides are pedal up and ride down, so flipping the shock to trail for the way up isn't an issue for me.
(oh and BTW, I fixed my ad)
But down where I live I only have to deal with midges and mozzies.
And thankfully they don't bother me to much.
But if you're truly pestered by midges I recommend something called "Djungelolja", or "indianpiss" as my dad called it.
The best insect reppellant I've ever used.
It was standard equipment in every anglers gear bag up north. (Our northern mozzies are truly horrible, and according to the northerners the size of a small attack helicopter).
I carry both here in the PNW. We have bears AND mountain lions.
www.canadiantire.ca/en/pdp/bear-bell-0765671p.html
And splitting the clamp off is actually a decent cost thing, because you know need to ensure that the two parts align correctly and that's a bit of extra machine work. At the manufacturing cost levels that SX is made with, a separate clamp would either often not fit correctly because of crap tolerances, or would be very fragile because they saved cost in materials or testing the design.
JUST SAY, IT'S REALLY HEAVY.
The Jeffsy is available in xxl. Would you please update the size list?
I stand by it. For whatever reason, the company has generated much goodwill among the bro’s and brah’s here. Look at any YT test or product release, and they come out of the woodwork to praise and defend the brand, and downvote anyone who says anything negative about their bikes rattling apart or their customer service. Check any YT content and compare it to similar Specialized (THeY sUe!) or Yeti (dENtiSt!) content.
It’s cool though — if you are into marketing, you can definitely learn a thing or two from YT. They know their customers and have really sold the image that they are looking out for “young talent.” People have definitely gobbled it up.