{"product_id":"atv-3125r-120-junior-atv","title":"Coolster ATV-3125R 125 Junior ATV","description":"\u003cp\u003e\u003cstrong\u003eNine colorways, a 24 inch seat and a genuinely capable 120cc automatic. The one most families land on.\u003c\/strong\u003e\u003c\/p\u003e\u003ctable class=\"fit-box\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRider\u003c\/th\u003e\n\u003ctd\u003eOur call: 10 and up, some experience\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeat height\u003c\/th\u003e\n\u003ctd\u003e24.4 inches (620 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTransmission\u003c\/th\u003e\n\u003ctd\u003eFully automatic, nothing to shift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eParental controls\u003c\/th\u003e\n\u003ctd\u003eAdjustable throttle limiter is standard on youth ATVs under the CPSC youth standard. We confirm it on your unit before it ships.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003csmall\u003eRider age is our recommendation, not the manufacturer's. Coolster does not publish a recommended age for this model, and we would rather give you our honest read than leave the row blank. Seat height and transmission are straight off their spec sheet. Our \u003ca href=\"\/pages\/size-guide\"\u003esize guide\u003c\/a\u003e walks the whole thing through in two minutes.\u003c\/small\u003e\u003c\/p\u003e\u003cp\u003eCoolster badges this one 3125 and prints 120cc on their own spec sheet. Both numbers are on this page because you should not have to dig for that.\u003c\/p\u003e\u003cp\u003eWhat you are actually getting is a step up from the mini quads: bigger 16 inch tires, a 140mm ground clearance that clears real ruts, and a 620mm seat that still lets most ten year olds get their feet down. It is the machine that stops being outgrown after one season.\u003c\/p\u003e\u003ch3\u003eWho this one is for\u003c\/h3\u003e\u003cp\u003eRiders roughly ten and up who have ridden something before, or a tall beginner with an adult standing right there. If your rider is under about four foot four, start with the 3050B2.\u003c\/p\u003e\u003ch3\u003eWhat you get\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e120cc single cylinder four stroke, air cooled, fully automatic\u003c\/li\u003e\n\u003cli\u003eElectric start, 12V 5Ah battery, CDI ignition\u003c\/li\u003e\n\u003cli\u003e24.4 inch seat height\u003c\/li\u003e\n\u003cli\u003e5.5 inch ground clearance, 16 x 8 tires front and rear\u003c\/li\u003e\n\u003cli\u003eHydraulic disc rear brake, drum front\u003c\/li\u003e\n\u003cli\u003eNine photographed colorways including three Spider graphics and three Army trims. Coolster lists an Army Black but has published no photography for it, so it is not listed here. Ask us if you want it.\u003c\/li\u003e\n\u003cli\u003eChain drive, rear wheel drive\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Number\u003c\/th\u003e\n\u003ctd\u003eATV-3125R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Type\u003c\/th\u003e\n\u003ctd\u003eSingle cylinder, 4-stroke, air-cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003ctd\u003e120cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Torque\u003c\/th\u003e\n\u003ctd\u003e6.9N.m\/6,500 ± 500r\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Power\u003c\/th\u003e\n\u003ctd\u003e5.5kW\/8,500 ± 500r\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Stroke\u003c\/th\u003e\n\u003ctd\u003e52.4 x 55.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIgnition\u003c\/th\u003e\n\u003ctd\u003eCDI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStarting System\u003c\/th\u003e\n\u003ctd\u003eElectric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003e12V, 5Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClutch\u003c\/th\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTransmission\u003c\/th\u003e\n\u003ctd\u003eChain, Rear Wheel Drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrakes Front\/Rear\u003c\/th\u003e\n\u003ctd\u003eDrum\/Hydraulic Disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTires Front\/Rear\u003c\/th\u003e\n\u003ctd\u003e16 x 8.0-7 \/ 16 x 8.0-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFuel Capacity\u003c\/th\u003e\n\u003ctd\u003e0.54 gallons \/ 2.06L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eGross 118 kg \/ 260 lbs, Net 98 kg \/ 216 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWheelbase\u003c\/th\u003e\n\u003ctd\u003e855 mm \/ 33.7 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e1465 x 920 x 925 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight to Seat\u003c\/th\u003e\n\u003ctd\u003e620 mm \/ 24.4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMin. Ground Clearance\u003c\/th\u003e\n\u003ctd\u003e140 mm \/ 5.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003csmall\u003eEvery figure above is copied from Coolster's own published specification table for model ATV-3125R, read on 28 August 2026. Where a metric value was published we added the imperial conversion in brackets and changed nothing else. Manufacturer reserves the right to change specifications without notice.\u003c\/small\u003e\u003c\/p\u003e\u003ch3\u003eQuestions people actually ask\u003c\/h3\u003e\u003cdetails class=\"pdp-faq\"\u003e\u003csummary\u003eWhy does it say 3125 if the engine is 120cc?\u003c\/summary\u003e\u003cp\u003eBecause the model number is a product name, not a measurement. Coolster's own spec sheet says 120cc and we print it right on this page. Every brand in this category does the same thing. We would just rather you heard it from us.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails class=\"pdp-faq\"\u003e\u003csummary\u003eWhat is the difference between this and the 3125R2?\u003c\/summary\u003e\u003cp\u003eThe R is the bigger machine. Longer wheelbase, 16 inch tires, 5.5 inches of ground clearance and a 24.4 inch seat. The R2 is a mini frame with a slightly larger 125cc engine and a lower 23.6 inch seat. Taller rider, buy the R. Smaller rider, buy the R2.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails class=\"pdp-faq\"\u003e\u003csummary\u003eAre the Spider and Army colors just graphics?\u003c\/summary\u003e\u003cp\u003eYes, the machine underneath is identical. Pick whichever one makes your kid grin.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails class=\"pdp-faq\"\u003e\u003csummary\u003eCan an adult ride it?\u003c\/summary\u003e\u003cp\u003eBriefly and gently, around a field. It is a youth machine and the geometry is wrong for a full sized adult. If you want one for yourself, look at the 3200S.\u003c\/p\u003e\u003c\/details\u003e\u003ch3\u003eBefore you buy\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping-freight\"\u003eShipping and freight\u003c\/a\u003e: free to the lower 48, curbside with a liftgate included, and exactly what to do if the crate arrives damaged.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/assembly-setup\"\u003eAssembly and setup\u003c\/a\u003e: the one to two hours between the crate and the first ride.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/warranty\"\u003eWarranty\u003c\/a\u003e: what is covered, what counts as a wear item, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/safety-first\"\u003eSafety first\u003c\/a\u003e: gear, rules and supervision. Please read this one.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/compare\"\u003eCompare all 13 machines\u003c\/a\u003e on rider age, seat height, real displacement and machine weight, on one page.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eWe would rather sell you one machine your family enjoys for years than rush you into the wrong one. Not sure about size? Run the \u003ca href=\"\/pages\/rider-fit-finder\"\u003eRider Fit Finder\u003c\/a\u003e, or just call us. Nobody here works on commission.\u003c\/em\u003e\u003c\/p\u003e","brand":"Coolster","offers":[{"title":"Red","offer_id":49648439460055,"sku":"ATV-3125R-RED","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":49648439492823,"sku":"ATV-3125R-BLUE","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":49648439525591,"sku":"ATV-3125R-BLACK","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Spider Red","offer_id":49648439558359,"sku":"ATV-3125R-SPIDER-RED","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Spider Blue","offer_id":49648439591127,"sku":"ATV-3125R-SPIDER-BLUE","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Spider Black","offer_id":49648439623895,"sku":"ATV-3125R-SPIDER-BLACK","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Army Green","offer_id":49648439656663,"sku":"ATV-3125R-ARMY-GREEN","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Army Pink","offer_id":49648439689431,"sku":"ATV-3125R-ARMY-PINK","price":1049.0,"currency_code":"USD","in_stock":true},{"title":"Army Purple","offer_id":49648439722199,"sku":"ATV-3125R-ARMY-PURPLE","price":1049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0841\/5946\/3639\/files\/Coolster-125cc-3125R-Mid-Sized-Utility-Style-ATV-Red-Front-Left-Quarter-View-Photoroom.jpg?v=1787877597","url":"https:\/\/blueskypowersports.com\/products\/atv-3125r-120-junior-atv","provider":"Blue Sky Powersports","version":"1.0","type":"link"}