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Spawn Cycle
Yama Jama 20"

The Best 20" Trail Bike for kids 4-7. 

IN STOCK. SHIPS IN 2-3 DAYS FROM UT. 

US$1,375.00
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Description

THE ULTIMATE 20" TRAIL BIKE FOR KIDS 4-7.

Yama Jama 20" raises the bar for kids' trail bikes!

The skeleton of the 20” Yama Jama is simply awesome! It all starts with a 6061-T6 alloy frame using hydroformed and double-butted tubing, a semi-integrated head tube, a unique forged BB shell/yoke for added stiffness, ISCG-05 tabs and even an internal routing option for dropper posts.

The most impressive part of the base in our opinion though is the Brood Bike Co. Eldorado fork. The fork features a hand-laid carbon fibre lower, a replaceable cartridge damper with a rubber bladder, lockout, a 15mm through-axle and 80mm of plush, nearly stiction free travel.

With a base like that, we couldn’t skimp on the components... The drivetrain starts with the Brood Bike Co. Styx 130mm crank using a SRAM pattern direct mount interface for the chainwheel and a sealed external bottom bracket. We add a Brood 30t narrow wide alloy chainwheel and then utilize a SRAM GX derailleur and shifter combo to get things moving to the 11-36T 10 speed SRAM cassette. Stopping is handled by powerful Tektro Auriga hydraulic discs.

The next big highlight is the wheelset and tires. The Yama Jama uses Brood Bike Co. tubeless ready rims with a wide profile and tops it off with the amazing Brood Maxtion foldable, tubeless ready tire. Touch points matter for kids too, so we’ve topped this Yama Jama off with Brood Tenderiderz lock ons and the Brood Throne seat with a unique Pivotal mechanism that provides fore/aft adjustment.

Simply put, this is the ultimate 20” hardtail trail bike! 

Size Guide Need help selecting the right size?

Specs

  • Frame 6061 - T6 ALLOY, HYDROFORMED & DOUBLE BUTTED TUBING
  • Fork BROOD ELDORADO, CARBON FIBER LOWER, ADJUSTABLE REBOUND, LOCKOUT - 80MM TRAVEL
  • Cranks BROOD STYX 2 PIECE DIRECT MOUNT ALLOY, 130MM
  • Chainwheel BROOD NARROW WIDE, CNC ALLOY, 30T
  • Bottom Bracket SEALED EXTERNAL BEARING
  • Rear Derailleur SRAM GX
  • Shifter SRAM GX
  • Cassette SRAM 10 SPEED, 11-36T
  • Chain KMC X10 SILVER
  • Front Brake TEKTRO HYDRAULIC DISC, 160MM
  • Rear Brake TEKTRO HYDRAULIC DISC, 160MM
  • Brake Levers TEKTRO
  • Handlebars ALLOY, 560MM WIDE, 31.8MM
  • Grips BROOD TENDERIDERZ LOCK-ON
  • Stem FORGED ALLOY, 40MM
  • Front Hub ALLOY, SEALED BEARING - 100 X 15
  • Rear Hub ALLOY, SEALED BEARING - 135 X 9
  • Rims BROOD TR27, ALLOY, 28H
  • Tires BROOD MAXTION, 20" X 2.20", TUBELESS READY
  • Headset SEALED BEARING
  • Seat BROOD THRONE PIVOTAL
  • Seatpost ALLOY PIVOTAL, 220MM, 30.9MM
  • Seatpost Clamp ALLOY, QR
  • Pedals WELLGO PLATFORM, ALLOY

Geometry

  • Name Shortcode Measurement
  • seat tube length ST 255MM
  • head tube angle HA 68 DEGREES
  • effective seat tube angle SA 72 DEGREES
  • theoretical top tube length TT 450MM
  • head tube length HT 100MM
  • fork length FL 385MM
  • wheelbase WB 869MM
  • front centre FC 529MM
  • rear centre RC 340MM

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