New arrival
New arrival

2026 Polygon Tambora A9X

By Polygon
$5,399.00 CAD
503339001
Color: Black
Size
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Description

TAMBORA: Our Most Versatile Gravel Machine

Gravel | ACX & ALX Frames | 12 Available Builds

Whether you're a long-distance enthusiast or an adventurous explorer, the TAMBORA is here for all your gravel needs. Flip chips at the rear dropouts and fork base let you switch between gravel and all-road geometry in minutes, making the TAMBORA genuinely two-bikes-in-one. With 14 universal mounting points across the frame, it's ready to carry everything your adventure demands.
Technical Specifications

Frameset

  • Frameset: ACX GRAVEL
  • Fork: CARBON RIGID
  • Size: S, M, L, XL
  • Frame Color: BLACK
  • Decal Color: CHARCOAL

Drivetrain

  • Shifter: SHIMANO GRX Di2 ST-RX825, 2x12-SPEED BRIFTER
  • Crank: SHIMANO GRX FC-RX820, 48x31T
  • Cassette: SHIMANO ULTEGRA CS-R8101, 11-34T
  • Rear Derailleur: SHIMANO GRX Di2 RD-RX825
  • BB: TOKEN T47 FOR 24mm SPINDLE
  • Chain: KMC NEW X-12

Cockpit

  • Saddle: FIZIK TERRA ARGO X7
  • Seatpost: CARBON, DxL: 27.2x400mm
  • Handlebar: BLKTEC R8 INTEGRATED, W: 400mm (S, M) / 420mm ( L, XL), BB: 31.8mm INTEGRATED, R/D: 125mm, B/R: 72mm
  • Handlestem: BLKTEC R8 INTEGRATED, EXT: 100mm (S, M) / 110mm (L-XL), BB: INTEGRATED, R/D: 0 Degree
  • Headset: TOKEN TK155P-36 W/ SEALED BEARING, IS 52/28.6 | IS 52/40

Wheel & Tire

  • Wheel Set: NOVATEC G24 DISC (28mm) W/ TUBELESS TAPE INSTALLED
  • Wheel Size: 700C
  • Tire: MAXXIS RE-FUSE 700X32C
  • Rim: F: CARBON FV H: 28 622x24 24H FOR TYRE 622-35/68 TLR / R: CARBON FV H: 28 622x24 24H FOR TYRE 622-35/68 TLR
  • Hub: F: NOVATEC D791SB 12x100mm 24H CL / R: NOVATEC D792SB 12x142mm 24H CL FOR CASSETTE SPROCKET
  • Spokes: F: STAINLESS DOUBLE BUTTED 14G NDS:282mm DS:284mm W/ NIPPLE BRASS / R: STAINLESS DOUBLE BUTTED 14G NDS:284mm DS:282mm W/ NIPPLE BRASS

Brake

  • Brake Lever: SHIMANO RX825
  • Brake Caliper: SHIMANO GRX RX825 HYDRAULIC DISC
  • Rotor: SHIMANO CL800, 160mm
Geometry
S M L XL
Height (cm) 150-163 163-175 175-188 188-195
Seat Tube Length (A) 404 448 492 535
Seat Tube Angle (B) 74.75 74.26 73.76 73.26
Effective Seat Tube Angle (C) 74.75 74.26 73.76 73.26
Head Tube Length (D) 143 163 193 221
Head Tube Angle (E) 70.25 70.77 72.06 72.26
Effective Top Tube (F) 526 550 581 610
Bb Height (G) 265 265 265 265
Bb Offset (H) 79 79 79 79
Chainstay Length (I) 415 415 415 415
Wheelbase (J) 997 1003 1026 1048
Frame Reach (K) 371 383 400 415
Frame Stack (L) 566 591 621 648
Standover Height (M) 701 741 784 819
Product Variants SKU/UPC
  • 2026 Polygon Tambora A9X: Black / SM: SKU: 503339001 - UPC:
  • 2026 Polygon Tambora A9X: Black / MD: SKU: 503339002 - UPC:
  • 2026 Polygon Tambora A9X: Black / LG: SKU: 503339003 - UPC:
  • 2026 Polygon Tambora A9X: Black / XL: SKU: 503339004 - UPC: