2021 Trek Precaliber 20 7-speed Boy's

The 2021 Trek Precaliber 20 7-speed Boy's is a 20″ aluminum frame general youth bike with modest components and rim brakes.

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2021 Trek Precaliber 20 7-speed Boy's
  • MSRP $329
  • Weight 24.1 lbs / 10.9 kg
  • Front Travel 35mm
  • Frame Aluminum
  • Wheels 20″
  • Tires 2.25"
  • Drivetrain 1 × 7
  • Groupset Tourney
  • Brakes Rim
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1 × 7 — 7 speed

2021 Trek Precaliber 20 7-speed Boy's
14 mph
Similar Bikes
18 mph

The Precaliber 20 7-speed Boy's is easier to ride up hills than similar bikes.

The Precaliber 20 7-speed Boy's won‘t keep up with similar bikes while riding downhill or sprinting.



FrameAlpha Silver Aluminum, 20'' kids' frame size
ForkKids' suspension, 35mm travel
Bottom BracketSquare taper, 68mm
HeadsetAdjustable ball bearing, threadless
StemBontrager Approved alloy, 25.4mm clamp, 15 degree rise, 60mm
HandlebarKids' steel, 25.4mm clamp, 40mm rise, 560mm width
SaddleKids' padded, integrated seatpost, with handle
GripsKids' grip, 125mm width
Rear DerailleurShimano Tourney TY300, long cage, 34T max cog
CrankProWheel alloy, 32T steel ring w/double guard, 127mm length
ShiftersShimano Tourney RS45, 7 speed twist
CassetteSunRun freewheel, 14-28, 7 speed,
ChainKMC Z7, 7 speed
BrakesAlloy linear-pull
Brake LeversKids', alloy
RimsAlloy 20'', 32-hole, schrader valve
Spokes14g stainless steel
Front HubAlloy, 100mm bolt-on
Rear HubAlloy, 8-speed, 130mm bolt-on
TiresBontrager XR1, wire bead, 27 tpi. 20x2.25''
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2021 Trek Precaliber 20 7-speed Boy's