Trek Powerfly FS 4

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Powerfly FS 4 is a full suspension electric mountain bike built to tackle rugged trail adventures. The plush suspension setup soaks up rough terrain, and the powerful Bosch electri c drive system boosts your capacity to crush climbs and mile after mile of singletrack. XS and Small feature 27.5" wheels. Medium and Large feature 29" wheels. Frame Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, internal routing, Motor Armor, magnesium rocker link, rack and fender mount, ABP, Boost148, 100mm travel *Fork Size: XS , SSR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 41mm offset, oversized crown for eMTB, Boost110, 15mm bolt-on thru axle, 100mm travel Size: M , L , XLSR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm bolt-on thru axle, 120mm travel Shock SR Suntour Edge R, 190mm x 45mm Max compatible fork travel 120mm (XS & S: 520mm axle-to-crown, M & up: 545mm axle-to-crown) Wheels expand_less Hub front Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle Hub rear Bontrager Approved DC-3248, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru axle Skewer rear Bontrager Switch thru axle, removable lever Rim Alex MD35, tubeless compatible, 32-hole, 35mm width, presta valve Spokes 14g stainless steel *Tire Size: XS , SBontrager XR3 Comp, wire bead, 30tpi, 27.5x2.35'' Size: M , XLBontrager XR3 Comp, wire bead, 30tpi, 29x2.30'' Rim strip Bontrager TLR Max tire size Frame: 29x2.40" (XS & S: 27.5x2.60") Fork: See manufacturer Drivetrain expand_less Shifter Shimano Deore M4100, 10 speed Rear derailleur Shimano Deore M5120, long cage Crank FSA Bosch CK-220, 36T ring, 165mm length Chainring FSA, 36T, steel Cassette Shimano Deore M4100, 11-46, 10 speed Chain KMC X10, 10 speed Pedal VP-536 nylon platform Max chainring size Max: 46T, Min 34T Components expand_less Saddle Bontrager Arvada, steel rails, 138mm width *Seatpost Size: XS , S , MTranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length Size: L , XLTranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length Handlebar Bontrager alloy, 31.8mm, 15mm rise, 720mm width Grips Bontrager XR Trail Comp, nylon lock-on *Stem Size: XS , SBontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length Size: M , L , XLBontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length Headset FSA IS-2 Brake rotor Tektro, 6-bolt, 203mm Brake Set Tektro HD-M275 hydraulic disc Accessories expand_less Battery Bosch PowerTube 500Wh Charger Bosch compact 2A, 100-240V, smart system Motor Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist Computer Bosch Purion Fender Trek Powerfly 29'' custom fender Weight expand_less Weight M - 24.83 kg / 54.75 lbs Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). Size chart Size Rider Height Inseam XS 145 - 155 cm 4'9" - 5'1" 69 - 73 cm 27" - 29" S 155 - 165 cm 5'1" - 5'5" 74 - 78 cm 29" - 31" M 165 - 176 cm 5'5" - 5'9" 79 - 83 cm 31" - 33" L 177 - 188 cm 5'10" - 6'2" 84 - 89 cm 33" - 35" XL 188 - 195 cm 6'2" - 6'5" 89 - 91 cm 35" - 36" Show more