Bikes
MTB

Whether it's climbing and going down steep trails or jumping high at bike parks. Enjoy your riding and discover yourself.

DJ/BMX

No hands, more tricks. With our robust and specific geometry-designed dirt jumper and BMX bikes, you'll go from ground to air and back again smoothly and safely.

ROAD

Chasing for speed and against the wind, or fun Sunday club ride with friends around town; all you need is here.

ADVENTURE

Whether it's a fun tour with friends on gravel roads, or just keep riding into the unknown. Unlock yourself, it all starts here.

URBAN

Bikes have given us a lot. It helps us to live a life that we can be happy with and proud of; so we want to share that and bring a healthy and joyful day-to-day routine.

E-BIKES

These years, we have come further to build a smart living. We bring you our E-bikes, to take you to discover more trails, more loops, and discover future.

JUNIOR

What's more lovely than the childhood memories? Ouch! Perhaps the one that crosses your mind right now is that first scar that you got while riding on a bike! But hey, it was also a lovely family time, the first taste of courage to learn how to get back on after falling off, and go on adventure with new friends. So, go get bikes for your kids, and see those beautiful things also happen to them.

UNVEIL THE TAMBORA

SWIFT ADVENTURES UNLOCKED IN ONE BIKE
Drawing inspiration from the birth of bicycles, sparked by the largest volcanic eruption in recorded history, Mount Tambora, we've looked back and reminded ourselves and the world of this history by creating the Polygon Tambora G – a perfect fusion of gravel and all-road capabilities in one extraordinary ride. This bike empowers us to conquer any terrain with newfound speed.​ Whether you're a competitive racer, long-distance enthusiast, or an adventurous explorer, this bike is tailored to meet your needs.​
TAMBORA G4
$899
FIND DEALER
  • SKU : 503016
 
 
 
Features
  • Powerful Speed and Unwavering Stability

    Experience the ultimate ride that combines power and speed with unwavering stability. The wheelbase length ensures stability, while the precise head tube angle instills confidence in your steering and control. No need to compromise between speed, stability, and confidence—now, the choice is in your hands.​

  • Conquer Diverse Terrains with Ample Tire Clearance

    A wide tire clearance means a more capable you. Accommodating up to 45c tire. Go through any mixed terrain on any race or adventure, Polygon Tambora G will take you on any terrain with powerful speed.

  • Free to Choose in a Flip of a Switch

    Unlock the power of choice in your cycling experience, where you can switch between speed and agility or stability and control effortlessly. Introducing our groundbreaking technology: Flip Chip!

Specification
The specifications, colors, parts, and availability of the products can be subjects to alter without prior notification.
  • Frameset
    Frameset

    ALX GRAVEL

    Fork

    CARBON RIGID

    Frame Color

    BROKEN WHITE

    Decal Color

    BLACK

  • Drivetrain
    Shifter

    MICROSHIFT ADVENT X SB-M100, 1x10-SPEED BRIFTER

    Crank

    ALLOY 40T

    Cassette

    MICROSHIFT ADVENT X CS-H104 10 SPEED 11-48T

    Rear Derailleur

    MICROSHIFT ADVENT X M6205GM 10-SPEED

    BB

    THREADED BSA 68mm

    Chain

    KMC X10

  • Cockpit
    Saddle

    SELLE ITALIA MODEL X

    Seatpost

    ALLOY SEATPOST, DXL: 27,2 x 350mm

    Handlebar

    ALLOY FLARE 16degree, W: 420mm (S, M) / 440mm (L, XL), BB: 31,8mm, R/D: 125mm, B/R: 77mm

    Handlestem

    ALLOY STEM, EXT: 90mm (S, M) / 100mm (L, XL), BB: 31,8mm, R/D: 7degree

    Headset

    TOKEN TK156SP-CHHC W/ SEALED BEARING

  • Wheel & Tire
    Wheel Set

    ALLOY DOUBLE WALL 32H

    Tire

    VEE RAIL 700x40C 622x40 TLR

    Rim

    ALLOY DOUBLE WALL FV H: 19 622X23 32H TLR

    Hub

    F: ALLOY DISC BRAKE 12x100mm 32H 6B / R: ALLOY DISC BRAKE 12x142mm 32H 6B FOR SPROCKET

    Spokes

    F: STAINLESS 14G NDS:290 & DS:294 W/ NIPPLE BRASS / R: STAINLESS 14G NDS:292 & DS:290 W/ NIPPLE BRASS

  • Brake
    Brake Lever

    MICROSHIFT ADVENT X SB-M100

    Brake Caliper

    TEKTRO MD-C550 MECHANICAL

    Rotor

    TEKTRO 160mm 6B

Geometry & Size
S M L XL
Height (cm) 150-163 163-175 175-188 188-195
Seat Tube Length (A) 404 15.91 448 17.64 492 19.37 535 21.06
Seat Tube Angle (B) 74.5 2.93 74 2.91 73.5 2.89 73 2.87
Effective Seat Tube Angle (C) 74.5 2.93 74 2.91 73.5 2.89 73 2.87
Head Tube Length (D) 143 5.63 163 6.42 193 7.6 221 8.7
Head Tube Angle (E) 70 2.76 71.5 2.81 71.8 2.83 72 2.83
Effective Top Tube (F) 526 20.71 551 21.69 581 22.87 611 24.06
Bb Height (G) 280 11.02 280 11.02 280 11.02 280 11.02
Bb Offset (H) 78 3.07 78 3.07 78 3.07 78 3.07
Chainstay Length (I) 425 16.73 425 16.73 425 16.73 425 16.73
Wheelbase (J) 1017 40.04 1022 40.24 1045 41.14 1067 42.01
Frame Reach (K) 369 14.53 381 15 397 15.63 412 16.22
Frame Stack (L) 568 22.36 593 23.35 622 24.49 650 25.59
Standover Height (M) 716 28.19 755 29.72 798 31.42 833 32.8
S M L XL
Height (cm) 150-163 163-175 175-188 188-195
Seat Tube Length (A) 404 15.91 448 17.64 492 19.37 535 21.06
Seat Tube Angle (B) 74.75 2.94 74.26 2.92 73.76 2.9 73.26 2.88
Effective Seat Tube Angle (C) 74.75 2.94 74.26 2.92 73.76 2.9 73.26 2.88
Head Tube Length (D) 143 5.63 163 6.42 193 7.6 221 8.7
Head Tube Angle (E) 70.25 2.77 71.77 2.83 72.06 2.84 72.26 2.84
Effective Top Tube (F) 526 20.71 550 21.65 581 22.87 610 24.02
Bb Height (G) 265 10.43 265 10.43 265 10.43 265 10.43
Bb Offset (H) 79 3.11 79 3.11 79 3.11 79 3.11
Chainstay Length (I) 415 16.34 415 16.34 415 16.34 415 16.34
Wheelbase (J) 997 39.25 1003 39.49 1026 40.39 1048 41.26
Frame Reach (K) 371 14.61 383 15.08 400 15.75 415 16.34
Frame Stack (L) 566 22.28 59 2.32 621 24.45 648 25.51
Standover Height (M) 701 27.6 741 29.17 784 30.87 819 32.24
FAQ
Compare List 0
Compare List
Where Do
You Live?