Words by Flow | Images by Flow

The not-so-minor details

Product

YT Jeffsy CF Comp 2

Contact

YT Industries
au.yt-industries.com

Price

AUD5,499.00

Weight

13.00kg

Positives

Meticulous frame construction.
Well thought out spec.
Excellent value for money.

Negatives

Narrow rims.
Have to run YT's drink bottle.

Sporting more swagger than a West Indian cricketer, the YT Jeffsy is the sort of bike that’s guaranteed to draw expectations of a talented pilot from other riders when you rock up to the trailhead.

The bold, brash YT Jeffsy.

The bold and brash YT Jeffsy.

The direct-to-consumer brand released the Jeffsy mid last year amongst much fanfare  with the 140mm trail bike being the first 29” offering from the gravity oriented Germans. Given the brand’s image, a 29er was certainly a surprise move, but YT acted fast to make sure everyone knew this was a bike that was still built to shred, by pumping out one of the best launch videos of the year. Watch it below.

The Jeffsy is YT's first foray into the world of 29" wheels.

The Jeffsy is YT’s first foray into the world of 29″ wheels.


What’s the YT Jeffsy all about?

Before releasing the Jeffsy, the YT line up consisted of the 27.5” Enduro focused Capra (read our review here) a couple of dirt jump bikes and the Tues downhill bike, so the Jeffsy filled the hole for the type of bike many riders are buying these days, a 140mm trail bike, something that shines on the climbs and descents equally. We’re pretty stoked about this also, as the 120-140mm travel range is also pretty spot on for most Australian conditions.

It won't be hard to remember the Jeffsy's name.

It won’t be hard to remember the Jeffsy’s name.

The Jeffsy packs 140mm of travel front and rear.

The Jeffsy packs 140mm of travel front and rear.

Despite being the bike with the least amount of travel in the YT line up, it’s clear the Jeffsy is a 140mm bike that wants to throw any stereotypes off a bridge. A burly frame is the first sign of this bike’s eager intentions, and geometry numbers like the slack 67.6 degree head angle and a long front centre tell you the Jeffsy doesn’t want to be treated gently out on the trail.

The Jeffsy has a flip-chip on the shock that allows the rider to switch between two head angle and bottom bracket options. We’re starting the review in the slacker head angle position, but will be alternating between the two positions throughout the course of testing to see how the geometry adjustments change the ride.

The Jeffsy has two geometry positions available courtesy of two shock mounts.

The Jeffsy has two geometry positions available courtesy of a reversible shock mount.


Is that a full carbon frame?

It sure is! YT are clearly confident in their carbon layup, as you see many brands going for aluminium rear triangles and chainstays in this travel bracket. The frame’s construction is beautifully finished, with smooth carbon lines throughout, chunky pivot points and well thought out frame protection. The frame is the only carbon you’ll find on this bike, but even still the complete bike weighs respectably smack on 13kg.

The Jeffsy CF frame is entirely carbon, including the stays and linkages.

The Jeffsy CF frame is entirely carbon, including the stays and linkage.

A regular shaped water bottle won’t fit in the frame, but YT offer their own “Thirstmaster 3000”, which is a custom water bottle and cage combo for the Jeffsy, with the bottle holding exactly one pint of liquid (an American Pint that is- 473ml). Whilst the inability to fit a regular sized drink bottle in the Jeffsy and the $100 price tag for the Thirstmaster 3000 is a slight annoyance, we believe every trail bike should have somewhere to put a bottle, so we appreciate YT giving riders the option rather than forcing them to wear a pack.

YT's "Thirstmaster 3000" i specifically designed to fit in the Jeffsy frames.

YT’s “Thirstmaster 3000” is specifically designed to fit Jeffsy frames.


If I don’t pick up this bike assembled from a bike shop, is the bike easy to build out of the box?

We covered YT’s shipping process and what you can expect as a consumer in our review of the Capra last year, and building up the Jeffsy was very simple. As we covered in out article on the Capra, YT really do make the process fairly straightforward, and the boxing of the bike is excellent.

YT's website has clear instructions on how to assemble your bike from the box.

YT’s website has clear instructions on how to assemble your bike from the box.


What’s the spec like?

Across their range of bikes, it’s clear that YT put a lot of time into speccing their bikes with parts that are up to the job. They don’t skimp on components in one area to bolster another, and the direct to consumer sales model keeps the pricing keen.

The RockShox Pike RCT3 is impressive value at this price point.

The RockShox Pike RCT3 is impressive value at this price point.

This is lots of bike for $5499!

This is lots of bike for $5499!

The Jeffsy CF Comp 2 is no exception, and the $5499 price tag represents a favourable dollars to shiny parts ratio. The suspension is handled by Rockshox front and rear, and the top of the line Monarch shock and Pike RCT3 fork are pretty hard to beat as far as suspension goes. The drivetrain is a normally a 2×11 XT arrangement with RaceFace Turbine cranks on this particular model, but we converted the bike to 1×11 before we’d even left the workshop.

Brakes are Shimano XT, with a whopping 200mm front rotor paired with a 180mm rotor out back.

More power than a Russian weightlifter.

More power than a Russian weightlifter.

The wheelset is DT Swiss’s M1700 Spline hoops in their narrow guise, coming in at 22.5mm internally. This is the only component we’re feeling a little dubious about, just because we’ve become such fans of wider hoops over the past 12 months.

The narrow DT Swiss wheels gives the Onza tyres quite a rounded profile.

The narrow DT Swiss wheels give the Onza tyres quite a rounded profile.

The Onza Ibex tyres strongly resemble Maxxis’ Minion DHR II tyres, which are a great option for the aggressive trail rider, and they match the intentions of the Jeffsy perfectly. They’re a big 2.4″ front and rear.

Onza's Ibex tyres strongly resemble the Maxxis Minion DHR II.

Onza’s Ibex tyres strongly resemble the Maxxis Minion DHR II.

It’s funny how the little things can really help a bike make a good first impression – the RaceFace grips instantly meshed with us, and the SDG saddle’s narrow nose works for us too.

The RaceFace grips are a real winner.

The RaceFace grips are a real winner.


How many models are there in the range?

YT bring three carbon Jeffsy models into Australia as well as three alloy models, so there’s plenty of choice. Prices range from $3299-7499, so there’s a good spread for a wide variety of budgets.

The Jeffsy AL is insane value for money at $3299.

The Jeffsy AL is the entry point in the range, at $3299.


Where are we going to ride the YT Jeffsy? 

We’ve just had a trip to some of Victoria’s finest trails, to get to know the Jeffsy, before returning to our home base of Sydney’s rocky, rugged trails. We know one particularly fast local shredder aboard a Jeffsy who pilots it around some technical trails pretty quickly, so we’re interested to see how far we can push the limits of the Jeffsy’s 140mm of travel.

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