Every trail tells a different story. Polygon builds mountain bikes for every ride, from cross-country speed to technical descents, with hardtail and full-suspension MTBs designed to perform.
From skateparks and pump tracks to dirt jumps and street sessions, Polygon Dirt Jump & BMX bikes are built for confidence, control, and creativity.
Engineered with advanced frame technology, Polygon road bikes are designed to perform. Explore performance to all-rounder road bikes that deliver speed, efficiency, and precision on every ride.
Built for riders who refuse to be limited by the route, Polygon Adventure Bikes deliver comfort and versatility. Explore gravel bikes and hybrid bikes ready for urban rides and scenic escapes.
From daily commutes to weekend rides, Polygon city bikes deliver comfort, versatility, and reliable performance for every urban journey.
Go farther with Polygon electric bikes. From daily commuting to weekend adventures, our e-bikes deliver smooth power, confident handling, and more freedom on every ride.
Every ride starts with confidence. Polygon kids junior bikes are built for young riders, combining comfort, durability, and confidence to inspire every adventure from the very first ride.
STRATTOS JR
A performance road bike for junior riders with proper fit, easy control, and training performance.
Features
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Built for Young Riders
Strattos Jr is built from the ground up for young riders—not just a scaled-down adult bike. Designed around how kids ride, it feels more natural from the very first ride.
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Geometry that fits
With sizes and proportions tailored for kids, it delivers a more natural and stable riding position, making it more comfortable and easier to control.
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Easy control for small hands
Controls are designed to suit smaller hands, making braking and shifting easier, lighter, and more intuitive.
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Simple Setup
A simple setup allows young riders to focus on riding, ready for training without extra adjustments.
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Confident Braking
Braking feels smoother, lighter, and more consistent, giving kids the confidence they need as they ride faster and farther.
Choose your series
Build Specs
| Kit |
STRATTOS JR NEO
|
STRATTOS JR CORE
|
|---|---|---|
| Frame | ALX ALL-ROUND | ALX ALL-ROUND |
| Fork | INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE | CARBON ALL-ROUND |
| Shifter | SHIMANO TIAGRA ST-4725, 1x10 SPEED, DUAL CONTROL SHIFTER | MICRSHIFT SB-G7900-R, 1X9 SPEED, DUAL CONTROL SHIFTER |
| Crank Set | PROWHEEL DMA-CR099A-TT, 40T | PROWHEEL DMA-CR099A-TT, 40T |
| Cassette | SHIMANO TIAGRA CS-HG500-10, 11-34T | MICROSHIFT CS-H093, 11-38T |
| Rear Derailleur | SHIMANO TIAGRA RD-4700, 10-SPEED, DIRECT ATTACH | MICROSHIFT RD-G7920L, 9-SPEED, DIRECT ATTACH |
| Wheel Set | POLYGON RD6 DISC | POLYGON RD6 DISC |
| Tire | SCHWALBE 650Bx30C | SCHWALBE 650Bx30C |
| Brake Lever | SHIMANO TIAGRA ST-4725 | MICROSHIFT SB-G7900-L |
| Brake Caliper | SHIMANO TIAGRA HYDRAULIC DISC | MECHANICAL DISC BRAKE |
| Rotor | SHIMANO SM-RT64 F:160mm / R:140mm CENTER LOCK | TEKTRO TR-160-35 F:160mm / TEKTRO TR-140-35 R:140mm CENTER LOCK |
FAQ
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Who is Strattos Jr for?
Designed for young riders, depending on height and riding experience.
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What makes Strattos Jr different from regular youth’ bikes?
Strattos Jr is purpose-built around youth’ needs and proportions, making it feel more natural, easier to control, and more comfortable than scaled-down adult bikes.
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Why is proper bike fit important for youth?
A proper fit helps create a more natural and stable riding position, making youth more comfortable, safer, and more confident while riding.
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What’s the difference between Strattos Jr Core and Strattos Jr Neo?
and Strattos Jr Neo?
Strattos Jr Core is suited for entry-level riders, while Strattos Jr Neo offers a more refined and responsive riding experience. -
Can this bike be equipped with a double chainring?
Yes. However, crank arm length should be considered. Most crank arms start at 165 mm, which may reduce toe clearance.
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Can this bike accommodate two bottle cages?
No. The frame supports one bottle cage only.
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What is the saddle size?
The stock saddle measures 250 × 133 mm.
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What tire size does it use, and are there replacement options?
The bike comes with 27.5 × 30C tires and is not compatible with 700C wheels/tires. For replacements, 27.5 × 1.25–1.50 tires are recommended, as compatible inner tubes are easier to find in the aftermarket.