Jeffsy and Tues. A right pair if ever we saw one

Dream pairing. High spec YT trail and DH bike for the price of a boutique custom build?

Words: Sean White  Images: Callum Philpott

In only a handful of years YT has made a huge impact in the world of mountainbiking. dishing up a small but very focussed range of bikes With great spec for the money, these machines are very hard to ignore and without question should be on your ‘next bike’ list.

It’s not just about the pricing though. YT’s bikes have evolved very quickly into exceptionally well finished and presented designs with class leading dynamics and geometry.

With boutique brands (we don’t need to mention any names here…) selling top spec bikes with price tags of well over £7K, and frames topping £3K, getting a full build with premium components can feel out of reach for many riders. If a carbon frame is on your wish list, once you add the latest fork, wheels and drivetrain, prices soon start spiral upwards very rapidly. With YT you can get all this (with an aluminium frame if that’s your preference) at a price that is far more affordable. Sure, you’re buying from YT directly, not from a bike shop, but if you’re confident in what type of machine you need then it really isn’t a compromise when you consider the cost savings.

The original aluminium Tues DH bike immediately scored a place in the 2012 Dirt 100, soon after its launch. Five years on we look at the latest evolution of this bike, the carbon Tues CF Pro Race.

When it comes to trail and enduro bikes, YT have every base covered too. Their original 26” wheeled Wicked 160 had a class leading spec for the price and went straight into the 2013 Dirt 100 charts without any questioning. Here we look at the very latest 2017 trail bike from YT, the Jeffsy CF Pro Race 27, a machine that mirrors the intentions of the original Wicked design. It may well currently be a long lead time for an order on this bike but it looks like it will be worth the wait…

Two highly charged, full spec bikes with cracking prices tags and 27.5″/650B wheels.


The Tues CF sports a full carbon mainframe with a carbon upper stay and aluminium chain stay on the swingarm. It weighs in around a kilo less than the aluminium frame and is the same spec as the frame on the bike Gwin raced to victory at the Leogang World Cup last weekend. An exceptional finish and classy graphics add desirability to this YT; the detailing really is up there with the best. A big question is whether YT will offer this DH bike in a 29” wheel format in the future?


YT’s in-house designed V4L suspension layout is the same as the aluminium framed Tues and is designed to give a sensitive suspension response, getting more progressive through the stroke. With a switch to Fox last year, this CF Pro race model is air sprung front and rear with Factory spec 40 fork (that’s over £1700 on its own) and X2 shock on suspension duties.

Four sizes are now available with an XL thankfully added for 2017. Geometry and sizing is bang now with a 63.5° head angle and 435mm chainstay length being consistent on all sizes. Reach measurements of 450mm (L) and 470mm (XL) sit close to those of the Mondraker Summum.


It’s a strong brew of SRAM XO1 DH mixed with e*thirteen for the transmission. The LGR1 wheels are driven by an e*thirteen crank, chain device and cassette, working with the seven speed SRAM DH gearing. Gwin is on TRP brakes and we see them here too – the G-Spec Quadiems with 203mm rotors front and rear.

The finishing kit is straight from our Dirt 100 picks with Renthal and ODI for the cockpit. YT has not cut any corners here.

PRICE: £4299


We immediately fell for the original 29er Jeffsy trail bike when it arrived last year and it was one of our first shortlisted bikes for the 2017 Dirt 100. It’s no secret that we’re keen on the larger wheel trail bike, when done well. But hey, it seems that not all of you are and YT are now giving you a wheel size choice within their trail bike category. This top spec Pro Race version of the Jeffsy 27 runs 160mm of travel front and rear (all the other models are 150mm F/R) bringing it very close in numbers to YT’s much loved Capra. But the Jeffsy 27 leans towards ‘trail’ where the Capra’s heart is very much in the harder hitting ‘enduro’ camp. It’s a fine line to tread.


YT’s V4 link suspension design is seen again here on this carbon frame, driving a Fox Float X factory shock with a Fox 34 fork leading the charge. A ‘flip chip’ allow you to drop the bottom bracket height (344-350mm) and slacken out the head angle a touch for more aggressive riding. Four sizes have size specific chainstay lengths (430/435mm) but the head angle is consistent at 66/66.5° depending on the flip chip setting. Good numbers all round with the only comments being that some may prefer a shorter seat tower to allow for a longer travel dropper post.


As with the Tues CF this Jeffsy 27 is absolutely stacked with top drawer kit. It’s all very considered too, with a deliberate move away from a full groupset. Take the transmission – here we have an eleven speed 9-44T e*thirteen cassette being driven by a carbon Raceface Next SL crankset. The shifters and mech are SRAM XO1 but it’s an interesting diversion from a SRAM Eagle 12 speed set up. YT use e*thirteen for the wheels and tyres too, keeping the ‘factory’ feel to this build. SRAM Guide Ultimates are on of our favourite brakes here and are great to see, as are the Renthal bar/stem and Reverb dropper post. A very complete spec for a bike below £4000.

PRICE: £3799


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