The Tracker Sport is the way into Nukeproof: a trail hardtail with an aluminium frame, a Suntour XCE28 fork with 80mm of travel, simple Shimano ESSA 1x8 gearing and Shimano hydraulic disc brakes. XS and S frames run 27.5in wheels, M to XXL run 29in, all on grippy 2.4in tyres.
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