2018 Trek Superfly 20

Modest component level aluminum frame general-youth bike

trekbikes.com

2018 Trek Superfly 20
  • MSRP $400
  • Suspension Rigid
  • Frame Aluminum
  • Fork Aluminum
  • Wheels 20″ Aluminum
  • Drivetrain 1 × 6
  • Groupset 
    Shimano Tourney
Gearing

1 × 6 — 6 speed

2018 Trek Superfly 20
14 mph
Similar Bikes
18 mph

The 2018 Superfly 20 is easier to ride up hills than similar bikes.

The 2018 Superfly 20 won‘t keep up with similar bikes while riding downhill or sprinting.

Geometry

Roll over table below to highlight frame dimensions.

Size
facetWheelSize10
Stack 427
Reach 306
Stack/Reach Ratio1.40
Top Tube Length 445
Seat Tube Length 255
Seat Tube Angle72.0
Head Tube Length 135
Head Tube Angle70.0
BB Drop 15
Chainstay Length 😞
Wheelbase 864
Standover Height 518
🐐 Measurements listed in millimeters and degrees
Build
Frame20˝ Dialed frame size, Alpha Gold Aluminum
ForkDialed 20˝, alloy
Bottom BracketSealed cartridge
HeadsetVP 1-1/8˝, semi-Integrated
StemBontrager Elite, 31.8mm, 7 degree, w/computer & light mounts
HandlebarBontrager alloy, 31.8mm, 15mm rise
SaddleDialed 20˝ size, padded
SeatpostBontrager, 2-bolt head, 27.2mm, 8mm offset
PedalsDialed 9/16˝, platform
GripsDialed, Kraton
Components
Rear DerailleurShimano Tourney TY300
ShiftersShimano Tourney RS35, 6 speed twist
CrankAlloy, 32T
CassetteSunRun freewheel, 14-28, 6 speed
ChainKMC Z50
BrakesAlloy linear-pull, Dialed alloy levers
Wheels
Rims20˝ 32-hole alloy
Front HubFormula FM21 alloy
Rear HubFormula FM31 alloy
TiresBontrager XR1, 20x1.85˝
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2018 Trek Superfly 20