Skip to product information
1 of 8

Seal Cycles

Vortex 20" Kids Mountain Bike - Disc Brakes, Lightweight Alloy Frame

Vortex 20" Kids Mountain Bike - Disc Brakes, Lightweight Alloy Frame

Regular price $319.00 AUD
Regular price $459.00 AUD Sale price $319.00 AUD
Sale Sold out
Taxes included. Shipping calculated at checkout.

The Just-Right Bike For Everyday Adventures

Age Group
Color: Flame Orange
View full details

THE NEW 2025 SEAL Vortex 20" Kids MTB

The ideal first mountain bike for kids aged 5–8 (107–130 cm). Built with a lightweight 6061 alloy frame, Shimano 7-speed drivetrain, and 50mm Zoom suspension, the Vortex 20" delivers comfort, control, and safety on school runs, weekend rides, and early trail adventures. Equipped with Tektro mechanical disc brakes and kid-friendly components, it’s designed to grow confidence and inspire fun.

Why This Bike Is Just Right For Your Kid

Not too heavy. Not too simple. Just the right bike for ages 5–8.

Not Too Much

No complicated 21–24 speed setups

No oversized frame that’s hard to handle

No overpriced “pro-level” kids bikes

Just Right ✨

7-speed Shimano Tourney gears – simple & confidence-building

TEKTRO mechanical disc brakes – safe, reliable stopping power

Lightweight alloy frame & 50mm suspension fork – easy to ride

Perfect for school rides, weekend fun & first trail adventures

Just $349

Right features. Right value.

Not Too Little

Not a flimsy supermarket bike that breaks fast

Not heavy steel that’s hard for kids to pedal

Not unsafe brakes or weak plastic parts

Designed for young riders aged 5–8 who want more than a toy bike – safe, durable, and ready for everyday adventures.

What You're Getting

Everything your kid needs, nothing they don't.

20"

Wheel Size

Right size for ages 5–8 (107–130 cm)

7-Speed

Shimano Gearing

Simple shifting for hills & flats

Disc

Mechanical Brakes

Confident stopping in any weather

Light

6061 Alloy Frame

Easy for kids to handle

Smooth

50mm Suspension

Comfort on bumps & paths

Ready

Kickstand Included

85% assembled, ~30 min setup

No big brand. Just big value.

You’re paying for performance, not a logo.

Full Technical Specifications

Designed for kids starting real rides – light, safe, and confidence-inspiring

Component Specification
Season2025
Wheel Size20"
ColourBaby Blue/Mauve Pink
Frame6061 Aluminium Alloy
ForkZoom 565D Coil; Travel: 50mm
Front Travel50mm
GroupsetSHIMANO TOURNEY
Rear Gears7 Speed
Front GearsSingle
BrakesTEKTRO HD-M280 Mechanical Disc, Rotor: 160mm
Brake TypeMechanical Disc Brake
ShiftersShimano Revo Shifter SL-RV300-7R
CassetteShimano MF-TZ500-7, 14–28T
CranksetPROWHEEL PRO-V32PP 32T×140mm
ChainKMC HV500 1/2"×3/32"×96L
Rear DerailleurShimano TOURNEY RD-TY300 7-speed
HandlebarVortex Alloy, 580mm, 20° Backsweep, 30mm Rise, Sandblasted Black
StemAlloy Stem, Ext: 40mm, Steerer Dia: 28.6mm, Height: 35mm
GripsBlack TPR Grips (ST-07)
HeadsetGineyea G-068D
Bottom BracketNECO B910 Sealed Bearing
PedalsFP-806 Plastic Pedals
RimsYKL-D23 20"×1.5" Double-Wall Alloy Rim, 14G×32H, H:21mm
TyresMTB 20"×2.10
TubesMTB 20"×2.10 A/V
SaddleBOKSN BKS-1101
SeatpostAlloy 27.2×300mm×2.0T
HubsFront: SF-A210-QF, QR 100mm / Rear: SF-A210-QF, 32H, Nut Type 135mm
KickstandYES - Included

All this for just $349

Affordable, durable, and designed with kids in mind – the SEA