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    With plus sized tyres offering next level grip, control and floatation the Specialized Expert 6Fattie is a hardtail mountain bike built for taking on the roughest and loosest trails. If you’re looking for extra grip in the corners, more cushioning over rough terrain whilst still gunning down your favourite trail, the Fuse 6Fattie is for you.

    You can buy the Fuse Expert 6Fattie through a 0% interest Tredz Finance package.

    27.5+ Wheels

    Making their debut for 2016 are the new 27.5+, aka 6Fattie, wheel size. You have the same diameter wheels as 650b but with wider rims (650+) and 3” tyres. To fit these wheels the Fuse Expert requires a plus sized fork and a wider 148mm rear hub. The oversized tyre has a much larger volume which makes the overall diameter similar to that of a 29er.

    Plus sized wheels massively improve your grip through a wider contact patch. This lets you hit the corners faster, making the Fuse ideal for scree-filled switchbacks and loose singletrack.  

    A higher tyre volume allows you to run lower pressures with less risk of pinching the tyre on the rim. This gives you more floatation (cushioning) which acts as extra suspension. This is why 6Fatties are much smoother than other hardtails on rough and tough terrain. Running at lower pressure further increases grip.

    Rolling resistance is slightly increased, but the added grip you get in return more than makes up for this.


    Specialized’s Fuse is built from M4 Premium Aluminium with butted and smooth welds for a lightweight frame with nimble handling. A tapered head tube provides a stiff front end for enhanced steering precision.

    Unique to the Fuse are Diamond Stays. The chainstay splits in two where it joins the bottom bracket. This is to allow clearance for the 3” wide tyre while keeping the stays as short as possible - to improve handling.

    The Fuse 6Fattie has a slack head angle, low bottom bracket and short chainstays for a stable yet nimble ride.

    Internal gear and dropper post routing keeps the lines clean.


    120mm of plush travel from the Manitou Magnum Comp 650+ fork combined with the extra wide tyres helps you float over rocks and roots. Adjustable rebound damping and compression damping (on the fly) means the fork can be dialled in to suit individual trail sections.


    SRAM’s GX 10 speed drivetrain with a wide range cassette offers all the gears you need to take on trail centre loops and cross country adventures. Powerful SRAM DB3 brakes offer confident speed control in all conditions.

    Extra wide WTB i45 Scraper rims offer great support for the 3” tyres and a TranzX dropper post allows you to get athletic on the frame.

    The Specialized Fuse Expert 6Fattie 27.5+ 2017 Features are:

    Frame: Specialized M4 Premium Aluminium, Trail 6Fattie Geometry, fully-butted w/ smooth welds, tapered head tube, tapered seat tube, forged 160mm disc mounts, 148mm thru-axle dropouts, replaceable alloy derailleur hanger

    Fork: Manitou Magnum Comp 650+, S: 100mm travel, M/L/XL: 120mm travel, Absolute+ damper, rebound adjust, tapered steerer, 15x110mm thru-axle, disc mount

    Headset: 1-1/8" upper, 1-1/2" lower, threadless, Campy style, cartridge bearings

    Bars: Specialized Stout XC, flat bar, double-butted 6061 alloy, 9-degree backsweep, 4-degree upsweep, 31.8mm

    Stem: Specialized XC, 3D forged alloy, 4-bolt, 6-degree rise

    Shifters: SRAM GX, 10-speed, trigger

    Rear Mech: SRAM GX Type 2.1, 10-speed, long cage

    Speed: 10

    Chainset: Specialized Stout XC Pro, forged alloy, 148-specific chain line, PF30, alloy spindle, 30T, 76mm BCD spider

    Bottom Bracket: Samox, PF30, sealed cartridge

    Cassette: Custom Sunrace, wide range, 10-speed, 11-40t

    Chain: KMC X10L, 10-speed, w/ reusable MissingLink

    Front Brake: SRAM DB3 Trail, 4-piston, semi-metallic pads, 180mm rotor

    Rear Brake: SRAM DB3, dual piston, semi-metallic pads, 160mm rotor

    Rims: WTB Scraper i45 650b, double-wall, 45mm inner width, 18mm deep, TCS tubeless compatible, sleeved, 24/28h

    Front Hub: Specialized Stout XC Pro 110, disc, alloy, cartridge bearings, 15x110mm thru-axle, 24h

    Rear Hub: Specialized Stout XC Pro 148, disc, alloy, loose ball bearings, 12x148mm thru-axle, 28h

    Tyres: Specialized 6Fattie Ground Control, 60TPI, 2Bliss Ready, folding bead, 650bx3.0" Front - Specialized 6Fattie Ground Control, 60TPI, 2Bliss Ready, folding bead, 650bx3.0" Rear

    Seatpost: TranzX YSP03 dropper, internal cable routing, remote lever, 30.9mm, S: 100mm travel, M/L/XL: 120mm travel

    Pedals: Alloy, 1 pc. body, 9/16", w/ reflectors

    Occasionally without notice, manufacturers sometimes change product specifications

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