Powerfly 9 Plus | Trek Bikes (INE)
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2018

Powerfly 9 Plus

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Model 21985
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Product details

  • Powerful central-mount Bosch motor, for speeds up to 25 km/h
  • Alpha Platinum Aluminium frame with additional Motor Armor protection
  • Ready for extras: accessorise with lights, mudguards, racks and more
  • The long-life battery is secured within the downtube and is easily removed for charging


Features

Specifications

  • Frameset

    Frame
    Alpha Platinum Aluminium, E2 tapered head tube, internal derailleur and dropper post routing, integrated battery, G2 Geometry on 29ers, Boost148
    Fork
    Fox Performance 34 Float, GRIP adjustable damper, E2 tapered steerer, Boost110, G2 Geometry w/51 mm offset, e-bike optimised, 120 mm travel
  • Wheels

    Wheels
    Bontrager Powerline Comp 40, 54T Rapid Drive, Tubeless Ready, Boost110 front, Boost148 rear, tubeless strips included, valves sold separately
    Tyres
    Schwalbe Rocket Ron Performance, Tubeless, aramid bead, 27.5x2.80˝
  • Drivetrain

    Shifters
    SRAM EX1, 8-speed
    Rear derailleur
    SRAM EX1
    Crank
    SRAM EX1, 15T w/chainguard
    Cassette
    SRAM XG-899 11-48, 8-speed
    Chain
    SRAM PC-1031
    Pedals
    Wellgo nylon platform
  • Components

    Saddle
    Bontrager Montrose Comp, chromoly rails
    Seatpost
    Bontrager Drop Line, internal routing, 31.6 mm (15.5: 100 mm/17.5 & 18.5: 125 mm/19.5 & 21.5: 150 mm
    Handlebar
    Bontrager Line, 35 mm, 15 mm rise, 750 mm width
    Grips
    Bontrager Race Lite, lock-on
    Stem
    Bontrager Line, 35 mm, 0-degree, 60 mm length
    Head set
    FSA IS-2, 1-1/8˝ top, 1.5˝ bottom
    Brake set
    SRAM Guide RE hydraulic disc
  • Accessories

    Battery
    Bosch Powerpack Performance 500 downtube
    Controller
    Bosch Purion Performance
    Motor
    Bosch Performance CX, 250 watt, 75 Nm
  • Weight

    Weight
    M - 21.84 kg / 48.14 lbs (with tubes)
    Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production.

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise stated.

Frame size number Frame size letter A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
15.5 in S 39.4 72.5° 12.0 68.5° 57.9 31.0 4.5 48.5 5.1 8.5 114.8 77.9 38.1 62.7
17.5 in M 41.9 72.5° 12.0 68.5° 59.9 31.0 4.5 48.5 5.1 8.5 116.8 77.6 40.1 62.7
19.5 in L 47.0 72.5° 14.0 68.5° 64.0 31.0 4.5 48.5 5.1 8.5 121.0 78.1 43.6 64.6
21.5 in XL 52.1 72.5° 16.0 68.5° 67.1 31.0 4.5 48.5 5.1 8.5 124.3 81.3 46.1 66.5

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