{"product_id":"altis-sigma-2026","title":"Altis Sigma (2026)","description":"\u003cp\u003eThe Altis Sigma runs a 97.2V 35Ah Samsung 50S pack — 3,402 Wh — into a hairpin-wound mid motor rated at 25 kW (34 hp) peak through a 450 phase-amp controller. Altis quotes 601 Nm at the rear wheel and 80+ mph on the 19\/19 Sigma with its 39-tooth sprocket. The 19\/16 Sigma MX swaps to a 44-tooth sprocket, which trades top end for drive and is quoted at 670 Nm and 68 mph.\u003c\/p\u003e\u003cp\u003e2026 is a substantially revised chassis, not a colour change. Front travel goes from 200 mm to 220 mm, the rear axle steps up to 20 mm, the chain moves from 428H to 520H, and seat height and ground clearance grow to 35 in and 13 in. Wheelbase is 51 in and the bike weighs 198 lb with the battery in. The rear is linkage-actuated — an 85 mm shock stroke gives roughly 200 mm of wheel travel — and both ends are adjustable. Braking is 4-piston hydraulic on a 260 mm front and 220 mm rear rotor, with five levels of regenerative braking set from the 3.5 in TFT display. The display also handles NFC start, and there is a Baja-style headlight, taillight and brake light.\u003c\/p\u003e\u003cp\u003eExpect 40–50 miles of real-world range depending on how hard it is ridden. The standard charger takes the pack 20–80% in about two hours and to full in about three; an 18-amp fast charger cuts that to 40–45 minutes. Straight-pull spoked aluminium rims and CST off-road tyres are fitted as standard.\u003c\/p\u003e\u003cp\u003eTwo colourways, Black and Red, and two wheel setups: 19\/19 or 19\/16 MX. The 35 in seat suits riders from roughly 5'9\" to 6'4\".\u003c\/p\u003e","brand":"Altis","offers":[{"title":"Black \/ 19\" \/ 19\"","offer_id":51247549415676,"sku":"RYV-BIKE-ALT-SIG-BLK-1919","price":5499.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 19\" \/ 16\" MX","offer_id":51247549448444,"sku":"RYV-BIKE-ALT-SIG-BLK-1916","price":5499.0,"currency_code":"USD","in_stock":true},{"title":"Red \/ 19\" \/ 19\"","offer_id":51247549481212,"sku":"RYV-BIKE-ALT-SIG-RED-1919","price":5499.0,"currency_code":"USD","in_stock":true},{"title":"Red \/ 19\" \/ 16\" MX","offer_id":51247549513980,"sku":"RYV-BIKE-ALT-SIG-RED-1916","price":5499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0812\/8305\/5868\/files\/altis-sigma-2026-black-hero.jpg?v=1788985908","url":"https:\/\/ryvox.com\/products\/altis-sigma-2026","provider":"RYVOX MOTO","version":"1.0","type":"link"}