Details

LIGHTWEIGHT CONTROL
The Premier 20 Disc EVO pairs a lightweight ALX Sport alloy frame with responsive 20″ wheels for precise handling and easy starts. Its kid-specific geometry delivers intuitive balance and efficient pedalling, helping young riders feel stable and confident from the first ride onward.

PREMIUM PERFORMANCE
A microSHIFT 8-speed drivetrain ensures crisp, accurate shifting for small hands, while hydraulic disc brakes with reach-adjust levers provide predictable, low-effort stopping in all weather. Every touchpoint is ergonomically tuned for kids, giving them the refined control of a true performance bike.

DURABLE BY DESIGN
With its precision-built alloy frame, replaceable derailleur hanger, and high-quality components, the Premier 20 stands up to years of active use. The kid-optimised cockpit maintains natural posture and responsive steering, keeping the bike dependable and comfortable throughout countless rides.

READY FOR REAL ADVENTURES
From school runs to weekend rides, the Premier 20 Disc EVO combines efficiency, safety, and thoughtful design in one well-equipped bike. Easy to maintain and confidence-inspiring to ride, it’s built to keep up as skills progress and adventures grow.
Specs
| frameset | |
|---|---|
| Frame | ALX XC Sport Alloy Frame, Threaded BSA 68mm Bottom Bracket, IS Mount Disc Brake 160mm, M10x135mm Rear Spacing, External Cable Routing, Bolt-On Centre Kickstand Mount |
| Headset | Zero Stack, Caged Bearing, S.H.I.S.: ZS44/28.6 | ZS44/30 |
| suspension | |
| Fork | Steel Rigid Fork, Straight 1-1/8” Threadless Steerer, IS Mount Disc Brake 160mm, 9x100mm Quick Release |
| drivetrain | |
| Rear derailleur | MicroSHIFT RD-M5185S Short Cage, 8-Speed |
| Shifter | MicroSHIFT SL-M6280-R with Optical Gear Display, 1x8-Speed Trigger |
| Crank | Prowheel Alloy Crank, 127mm Arm Length |
| Chainring | 36T, Max Capacity 36T |
| Cassette | MicroSHIFT CS-H803, 11–38T, 8-Speed |
| Chain | KMC Z8.3 |
| brakes | |
| Front brake | Tektro HD-J285 Hydraulic Disc Brake |
| Rear brake | Tektro HD-J285 Hydraulic Disc Brake |
| Rotor | Tektro TR160-52, 160mm, 6-Bolt |
| wheels | |
| Front hub | Solon DH802F, 9x100mm Quick Release, 32H |
| Rear hub | Solon DH802R, M10x135mm Quick Release, 32H |
| Rim | Polygon Alloy Double Wall 20", 30mm Width, 32H |
| Tyre | Vee Tire Co. Crown Gem, 20x2.25", 27 TPI |
| Max tyre size | 20x2.25" |
| contact points | |
| Handlebar | Alloy Handlebar, 580mm Width, 25.4mm Bore, 30mm Rise, 6° Bend |
| Grips | Polygon Kraton Grips |
| Saddle | Polygon Junior Saddle, Steel Rail Ø7mm |
| Seatpost | Alloy Seatpost, 27.2x250mm, 0mm Offset |
| Stem | Alloy Stem, 40mm Length, 25.4mm Clamp, 7° Rise |
| Pedals | One-Piece PP Body Platform Pedals |
| weight | |
| Bike weight | 23.81 lbs |
Geo
| Rider Height | 3'5"–4'3" |
| (A) Stack | 429 |
| (B) Reach | 321 |
| (C) Head Tube Angle | 69° |
| (D) Head Tube Length | 100 |
| Seat Tube Angle Effective | 72° |
| (F) Seat Tube Length | 255 |
| (G) Top Tube Effective | 460 |
| (H) Bottom Bracket Height | 234 |
| (I) Bottom Bracket Offset | -20 |
| (J) Chainstay | 370 |
| (K) Wheel Base | 892 |
| (L) Standover Height | 553 |
| (M) Fork Offset | 42 |
| Seat Post Length | 220 |
| Handlebar Width | 580 |
| Stem Length | 40 |
* All lengths in mm
Build
Polygon Premier Kids- Assembly Video
Your bike needs minor assembly before riding; use the tools and videos included.
As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.
Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.
Unboxing Your Bike
Bike Fit Setup
Tyre Pressure Setup
Pre-Ride Check