Details
LIGHTWEIGHT CONTROL
The Premier 20 Disc 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.
SMOOTH PERFORMANCE
A 7-speed drivetrain keeps every ride smooth and simple, letting kids handle gentle climbs or longer rides with ease. Mechanical disc brakes offer dependable stopping power, and easy-reach levers ensure control always feels natural and secure.
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-optimized cockpit maintains natural posture and responsive steering, keeping the bike dependable and comfortable throughout countless rides.
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 | Shimano Tourney RD-M310-DL, 7-Speed |
| Shifter | Shimano SL-M315, 7-Speed Trigger |
| Crank | Prowheel Alloy Crank, 140mm Arm Length |
| Chainring | 36T, Max Capacity 36T |
| Cassette | Shimano CS-HG200-7, 12–32T |
| Chain | KMC HV500 |
| brakes | |
| Front brake | Tektro MD-M280 Mechanical Disc Brake |
| Rear brake | Tektro MD-M280 Mechanical 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 |
| 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 | 24.03 lb |
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