{"product_id":"2026-polygon-tambora-a4","title":"2026 Polygon Tambora A4","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\u003ch3\u003eTAMBORA: Our Most Versatile Gravel Machine\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGravel | ACX \u0026amp; ALX Frames | 12 Available Builds\u003c\/strong\u003e\u003c\/p\u003eWhether 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.\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eFrameset\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrameset:\u003c\/strong\u003e ALX XC TRAIL FRAME\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork:\u003c\/strong\u003e CARBON RIGID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e S, M, L, XL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Color:\u003c\/strong\u003e CHARCOAL - BLUE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDecal Color:\u003c\/strong\u003e SILVER\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eDrivetrain\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShifter:\u003c\/strong\u003e SHIMANO GRX ST-RX600, 2x11-SPEED BRIFTER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank:\u003c\/strong\u003e PROWHEEL RPZ C701X TT, 48-31T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCassette:\u003c\/strong\u003e SHIMANO CS-HG700, 11-34T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Derailleur:\u003c\/strong\u003e SHIMANO GRX RD-RX810\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBB:\u003c\/strong\u003e BSA, 68mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e KMC X11\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCockpit\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaddle:\u003c\/strong\u003e LINC FLUX 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeatpost:\u003c\/strong\u003e POLYGON EXPERT, DxL: 27.2x400mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandlebar:\u003c\/strong\u003e POLYGON EXPERT, W: 420mm (S, M) \/ 440mm (L, XL), BB: 31.8mm, R\/D: 125mm, B\/R: 77mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandlestem:\u003c\/strong\u003e POLYGON EXPERT, EXT: 90mm (S, M) \/ 100mm (L, XL) , BB: 31.8mm, R\/D: 7degree\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadset:\u003c\/strong\u003e TOKEN TK156SP-36 W\/ SEALED BEARING, ZS 56\/28.6 | ZS 56\/40\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWheel \u0026amp; Tire\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Set:\u003c\/strong\u003e ALLOY DOUBLE WALL 32H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Size:\u003c\/strong\u003e 700C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTire:\u003c\/strong\u003e MAXXIS PURSUER 700X32C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim:\u003c\/strong\u003e F: ALLOY DOUBLE WALL FV H: 20 622 32H TLR \/ R: ALLOY DOUBLE WALL FV H: 20 622 32H TLR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub:\u003c\/strong\u003e F: NOVATEC D791SB 12x100mm 32H CL \/ R: NOVATEC D792SB 12x142mm 32H CL FOR SPROCKET\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpokes:\u003c\/strong\u003e F: STAINLESS 14G NDS:290 \u0026amp; DS:292 W\/ NIPPLE BRASS \/ R: STAINLESS 14G NDS:292 \u0026amp; DS290: W\/ NIPPLE BRASS\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eBrake\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Lever:\u003c\/strong\u003e SHIMANO ST-RX600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Caliper:\u003c\/strong\u003e SHIMANO GRX HYDRAULIC DISC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor:\u003c\/strong\u003e SHIMANO RT-CL700, 160mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eGeometry\u003c\/h4\u003e\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eS\u003c\/th\u003e\n\u003cth\u003eM\u003c\/th\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003cth\u003eXL\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight (cm)\u003c\/th\u003e\n\u003ctd\u003e150-163\u003c\/td\u003e\n\u003ctd\u003e163-175\u003c\/td\u003e\n\u003ctd\u003e175-188\u003c\/td\u003e\n\u003ctd\u003e188-195\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeat Tube Length (A)\u003c\/th\u003e\n\u003ctd\u003e404\u003c\/td\u003e\n\u003ctd\u003e448\u003c\/td\u003e\n\u003ctd\u003e492\u003c\/td\u003e\n\u003ctd\u003e535\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeat Tube Angle (B)\u003c\/th\u003e\n\u003ctd\u003e74.75\u003c\/td\u003e\n\u003ctd\u003e74.26\u003c\/td\u003e\n\u003ctd\u003e73.76\u003c\/td\u003e\n\u003ctd\u003e73.26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEffective Seat Tube Angle (C)\u003c\/th\u003e\n\u003ctd\u003e74.75\u003c\/td\u003e\n\u003ctd\u003e74.26\u003c\/td\u003e\n\u003ctd\u003e73.76\u003c\/td\u003e\n\u003ctd\u003e73.26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Tube Length (D)\u003c\/th\u003e\n\u003ctd\u003e143\u003c\/td\u003e\n\u003ctd\u003e163\u003c\/td\u003e\n\u003ctd\u003e193\u003c\/td\u003e\n\u003ctd\u003e221\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Tube Angle (E)\u003c\/th\u003e\n\u003ctd\u003e70.25\u003c\/td\u003e\n\u003ctd\u003e71.77\u003c\/td\u003e\n\u003ctd\u003e72.06\u003c\/td\u003e\n\u003ctd\u003e72.26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEffective Top Tube (F)\u003c\/th\u003e\n\u003ctd\u003e526\u003c\/td\u003e\n\u003ctd\u003e550\u003c\/td\u003e\n\u003ctd\u003e581\u003c\/td\u003e\n\u003ctd\u003e610\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBb Height (G)\u003c\/th\u003e\n\u003ctd\u003e265\u003c\/td\u003e\n\u003ctd\u003e265\u003c\/td\u003e\n\u003ctd\u003e265\u003c\/td\u003e\n\u003ctd\u003e265\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBb Offset (H)\u003c\/th\u003e\n\u003ctd\u003e79\u003c\/td\u003e\n\u003ctd\u003e79\u003c\/td\u003e\n\u003ctd\u003e79\u003c\/td\u003e\n\u003ctd\u003e79\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChainstay Length (I)\u003c\/th\u003e\n\u003ctd\u003e415\u003c\/td\u003e\n\u003ctd\u003e415\u003c\/td\u003e\n\u003ctd\u003e415\u003c\/td\u003e\n\u003ctd\u003e415\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWheelbase (J)\u003c\/th\u003e\n\u003ctd\u003e997\u003c\/td\u003e\n\u003ctd\u003e1003\u003c\/td\u003e\n\u003ctd\u003e1026\u003c\/td\u003e\n\u003ctd\u003e1048\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrame Reach (K)\u003c\/th\u003e\n\u003ctd\u003e371\u003c\/td\u003e\n\u003ctd\u003e383\u003c\/td\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003ctd\u003e415\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrame Stack (L)\u003c\/th\u003e\n\u003ctd\u003e566\u003c\/td\u003e\n\u003ctd\u003e591\u003c\/td\u003e\n\u003ctd\u003e621\u003c\/td\u003e\n\u003ctd\u003e648\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandover Height (M)\u003c\/th\u003e\n\u003ctd\u003e701\u003c\/td\u003e\n\u003ctd\u003e741\u003c\/td\u003e\n\u003ctd\u003e784\u003c\/td\u003e\n\u003ctd\u003e819\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e","brand":"Polygon","offers":[{"title":"Charcoal Blue \/ SM","offer_id":45471725715571,"sku":"503328001","price":1999.0,"currency_code":"CAD","in_stock":false},{"title":"Charcoal Blue \/ MD","offer_id":45471725781107,"sku":"503328002","price":1999.0,"currency_code":"CAD","in_stock":false},{"title":"Charcoal Blue \/ LG","offer_id":45471725813875,"sku":"503328003","price":1999.0,"currency_code":"CAD","in_stock":false},{"title":"Charcoal Blue \/ XL","offer_id":45471725846643,"sku":"503328004","price":1999.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6204\/6067\/files\/MY25-TAMBORA-A4-P-II.png?v=1789138630","url":"https:\/\/dunbarcycles.com\/products\/2026-polygon-tambora-a4","provider":"Dunbar Cycles","version":"1.0","type":"link"}