Turner’s Flux has evolved over the years from a 100mm-travel cross-country racer to a 120mm-travel 27.5” trail bike; now it sees another redesign with the fourth-generation Flux and its all-new carbon-fiber frame. This is Turner’s third carbon frame, joining the 100mm-travel Czar cross country bike and 160mm-travel, enduro-oriented RFX. (Now the only aluminum bike that remains in Turner’s line is the Cyclosis cyclocross bike.) The new v4.0 Flux has 120mm of travel from a DW-Link suspension design, and features trail-oriented geometry, such as a 67.5-degree head tube angle and steepish 73.7-degree seat tube angle. The claimed frame weight is 6.5 pounds.

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The Turner Flux v4.0.
External cable routing eases maintenance. Plus, they are anchored with bolt on aluminum clamps, so no cheap zip ties here.
Turner Bikes

The Flux v4.0 comes with 142mm-wide rear axle spacing and external cable routing, which might seem a bit old-school, but lends certain advantages. Because this bike is designed for standard-sized 27.5” rubber and not plus-size tires, the Flux doesn’t need a wider rear end and chain line for its tire clearance, so 142mm works just fine. (Plus, as Turner points out, riders who have already invested in high-end standard width wheelsets can still use them on this bike.) External cables greatly ease and speed up maintenance. The Stealth dropper seatpost routing is external until it enters the frame at the bottom of the seat tube.

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The Turner Flux 4.0.
Turner’s post-style brake mount uses threaded inserts that can be replaced if a mechanic applies a little too much torque to the brake bolts.
Turner Bikes

Turner was one of the first brands to go consumer-direct, and this offers some freedom to offer a spec choice in an important place: wheels. Complete bikes start at $4,895 with a SRAM GX build, with eight different wheel choices available, ranging in price from an additional $195 for DT Swiss E 1900, to $2,310 for Enve m60 wheels. Other wheel brand options include Stan’s, I9 and Knight Composites. Five other build options are also available, with 1x or 2x drivetrains (except the Eagle X0 1x12), topping out at $6,295 for the Shimano XTR build—without wheels of course. The Flux is available now.