ロードバイク10万円以下安くて初心者におすすめモデル

[Price Drop!] What is a high-performance entry-level road bike with SORA? (STRATTOS S3)

An entry-level aluminum road bike that's a great deal as part of a limited stock sale! Introducing POLYGON's "STRATTOS S3"!

With Shimano SORA grade components, it offers great value at 87,945 yen!

 

Recently, major brands like GIANT and TREK have been reducing their rim brake model lineups, meaning there are fewer "just right price range" options for beginner-friendly complete bikes.

In this context, models like the STRATTOS S3, which have a solid build at a suppressed price, are incredibly valuable.

 

For anyone looking to start road biking, this might be the last chance to get this grade at this price!

- Table of Contents -

 


ロードバイク10万円以下安くて初心者におすすめモデル

【Manufacturer's Suggested Retail Price】¥135,300 (tax included) ⇒ SALE! ¥87,945 (tax included) *Limited stock
【Colors (2 total)】Orange, Charcoal
【Sizes (approx. height guide)】S (162-170cm), M (168-176cm), L (174-181cm)

ロードバイク10万円以下安くて初心者におすすめモデル
ロードバイク10万円以下安くて初心者におすすめモデル


What is POLYGON BIKES?

ロードバイク10万円以下安くて初心者におすすめモデル

Before introducing this road bike, many of you might not know what "Polygon Bikes" is, and you might even mistakenly think that the "STRATTOS S3" I'm about to introduce is a cheap, mass-produced bike 💦

POLYGON BIKES is a sports bicycle brand based in Indonesia.

Originally, it was a bicycle OEM company called Insera Sena (a company that manufactures for other brands), and it has supported many famous brands.

ロードバイク10万円以下安くて初心者におすすめモデル

*This image is for illustrative purposes only.

While I can't reveal their specific achievements, which is a pity, they have worked with brands well-known to cycling enthusiasts and widely distributed in Japan.

Furthermore, it is Indonesia's largest manufacturer, boasting an annual production capacity of over 1 million units and advanced technical capabilities and facilities in every process, including welding, painting, assembly, and quality control.

ロードバイク10万円以下安くて初心者におすすめモデル

POLYGON BIKES is the original brand of Insera Sena.

POLYGON BIKES is characterized by tough, high-quality frames, and is particularly highly regarded for its cost performance in bikes designed for hard riding, such as MTBs.


Lightweight & Comfortable! A Thorough Review of the STRATTOS S3 Frame Performance

ロードバイク10万円以下安くて初心者におすすめモデル

The STRATTOS S3 is an entry-level aluminum road bike designed as a "first road bike."

 

The Charm of the Charcoal Color: Where Seriousness Meets Playfulness

ロードバイク10万円以下安くて初心者におすすめモデル
ロードバイク10万円以下安くて初心者におすすめモデル
ロードバイク10万円以下安くて初心者におすすめモデル

The Charcoal color of the STRATTOS S3 presented here features a subdued and calm gunmetal base, impressively adorned with a blue camouflage-like design on the inner side of the frame.

 

Frame Geometry

ロードバイク10万円以下安くて初心者におすすめモデル

Frame Size 460(S) 490(M) 520(L)
HA 70.5 71 72
SA 74.5 74 73.5
TT 525(S) 540(M) 555.7(L)
HT 120 140 160
FC - - -
RC 415 415 415
BB 75 75 75
FO - - -
WB 994.3 1001.1 1003.1
SH 708 736 764
SK 520 540.5 563.1
RH 381 385 389
Applicable Height 162~170(S) 168~176(M) 174~181(L)

The geometry features a low center of gravity and a slightly longer wheelbase, adopting a design that offers stability and is easy for beginners to handle.

 

ロードバイク10万円以下安くて初心者におすすめモデル

While the head tube length is slightly shorter, there's ample room for the steerer tube, allowing for an upright riding position as well.

 

Tube shape designed for vibration absorption, gentle even for beginners

ロードバイク10万円以下安くて初心者におすすめモデル
ロードバイク10万円以下安くて初心者におすすめモデル

The frame tubing is shaped with a "flat top, round bottom" design, reminiscent of a Kamm tail. This shaping is intended to reduce aero drag and absorb vibrations from the ground.

The thin wall thickness of the tubing is also a welcome feature, contributing to its lightweight design.

 

ロードバイク10万円以下安くて初心者におすすめモデル

The cables are internally routed within the frame.

 

Excellent Handling! Lightweight Carbon Fork with Superior Vibration Absorption

ロードバイク10万円以下安くて初心者におすすめモデル

The front fork features an aluminum-steerer carbon fork, balancing lightness with durability.

 

Surprising Perfection at this Price Point! Ideal Finish for an Entry-Level Road Bike

Considering the entire frame, given that Insera Sena established its original brand with full confidence, I believe it has achieved a cost-effective finish as an entry-level model!


Specs Beyond Its Price! Checking the STRATTOS S3 Component Configuration

Reliable Shimano SORA Equipped! Perfect for Your First Road Bike ◎

ロードバイク10万円以下安くて初心者におすすめモデル

The main groupset is Shimano SORA (2x9 speed).

 

ロードバイク10万円以下安くて初心者におすすめモデル
ロードバイク10万円以下安くて初心者におすすめモデル

With other brands in the same spec range, the crankset is often one grade lower, but the STRATTOS S3 consistently features SORA grade components.

 

Comfort-Oriented 700x28c Tires! Perfect for City Riding to Cycling

ロードバイク10万円以下安くて初心者におすすめモデル
ロードバイク10万円以下安くて初心者におすすめモデル

It comes standard with 700x28c slick tires and popular aluminum wheels.

 

Uncompromising Stopping Power! Caliper Brakes for Easy Maintenance

ロードバイク10万円以下安くて初心者におすすめモデル

The brakes are TEKTRO caliper brakes.

If you're thinking of challenging yourself with long-distance cycling or hill climbs in the future, we recommend upgrading the wheels and brakes!

 

Standard Pedals Included! Ready to Ride Immediately After Purchase

ロードバイク10万円以下安くて初心者におすすめモデル

Aluminum flat pedals are included as standard equipment.

 

Specifications Table

Tire Size 700x25C
Speeds 2x9 speed
Pedals None
Specs Frame ALX ALL-ROUND
Fork LIGHT WEIGHT CARBON FORK
Crankset SHIMANO SORA FC-R3000 50/34T
BB SHIMANO BSA THREADED FOR 2-PIECE CRANKSET, 68MM
F Derailleur SHIMANO SORA FD-R3000
R Derailleur SHIMANO SORA RD-R3000-SS DIRECT ATTACH
Shifter SHIMANO SORA ST-R3000, 2x9-SPEED DUAL CONTROL LEVER
Cassette SUNRACE CSM96.9AS 11-28T
Brake Lever INTEGRATED WITH SHIFTER
Brakes TEKTRO R315
Tires PERFORMANCE TIRE 700x25C
Wheelset C04 ALLOY
Handlebar ENTITY SPORT ALLOY
Stem ENTITY OE ALLOY
Headset ZERO STACK (ZS) SEALED BEARING FOR TAPER HEAD TUBE
Saddle ENTITY
Seatpost ENTITY SPORT ALLOY

*Product specifications, colors, and other details are subject to change without notice.

 

Note

There are slight differences in specifications compared to the manufacturer's official website. (The red text in the spec table above indicates the differences.) Please be aware of these.


This Performance for Under 100,000 Yen! The STRATTOS S3 is Perfect for Your First Bike!

  • High-quality aluminum frame for an entry-level grade!
  • Features an aluminum-steerer carbon fork that balances lightness and durability!
  • Equipped with reliable Shimano SORA (2x9 speed) road bike components!
  • Already great value for money, but now even more affordable in the limited stock sale!

 

ロードバイク10万円以下安くて初心者におすすめモデル

This model is recommended for anyone considering starting road cycling!

It's a road bike that perfectly balances stability, ease of handling, lightness, toughness, and vibration absorption.

 

While already a cost-effective model featuring Shimano SORA, we are now offering a special limited-stock sale!

With the money you save, you could upgrade the wheels or brakes and challenge yourself to a 100km ride – that would be great!

 

Please consider it!





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