{"product_id":"hkm-7558355-fat-tire-e-bike-750w-48v-13ah-20-inch-7-speed","title":"HKM-7558355 Fat Tire E-Bike Runs a 750W Hub on 20 x 4.0 Tires With a Brown Bench Saddle and Seven Speeds in Black","description":"\u003cdiv class=\"hkm-pdp\"\u003e\n\n\u003cstyle\u003e\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto:wght@400;500;700\u0026display=swap');\n.hkm-pdp{\n  --hkm-ink:#0e0e0e; --hkm-body:#636363; --hkm-muted:#6e6e6e; --hkm-line:#e1e1e1;\n  --hkm-panel:#f0f0f0; --hkm-blue:#0672cb; --hkm-link:#00468b;\n  max-width:1292px; width:100%; min-width:0; margin:0 auto; padding:0 2px;\n  font-family:\"Roboto\",\"Helvetica Neue\",Helvetica,Arial,sans-serif;\n  font-size:16px; line-height:1.7; color:var(--hkm-body); font-weight:400;\n  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; overflow-wrap:break-word;\n}\n.hkm-pdp *{box-sizing:border-box}\n.hkm-pdp .hkm-eyebrow{\n  font-size:11px; font-weight:400; letter-spacing:.08em; text-transform:uppercase;\n  color:var(--hkm-blue); 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width:auto!important; padding:2px 0; border:0; background:transparent}\n  .hkm-pdp .hkm-cmp td.hkm-cmp-row{font-weight:500; color:var(--hkm-ink); font-size:13.5px; margin-bottom:7px}\n  .hkm-pdp .hkm-cmp td[data-label]::before{content:attr(data-label) \" · \"; color:var(--hkm-muted); font-size:12px}\n}\n@media (min-width:768px) and (max-width:1023px){\n  .hkm-pdp{font-size:14.5px}\n  .hkm-pdp h2{font-size:21px}\n  .hkm-pdp h2:first-of-type{font-size:25px}\n}\n\n\u003c\/style\u003e\n\n\u003cp class=\"hkm-eyebrow\"\u003e750W · 624Wh · 20 x 4.0 · 123.9 lb\u003cspan class=\"hkm-eb-wt\"\u003e · brown saddle · round headlamp · 7-speed · mechanical discs · 330 lb\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch2\u003e\n\u003cspan class=\"hkm-t-d\"\u003eTwenty Inch Tires a Round Lamp and a Frame That Hides the Pack\u003c\/span\u003e\u003cspan class=\"hkm-t-m\"\u003eA Brown Saddle on Black Steel Frame\u003c\/span\u003e\n\u003c\/h2\u003e\n\n\u003cp class=\"hkm-lead\"\u003eA 20-inch fat bike in black or silver with a 750W hub, a 48V 13Ah pack worth 624Wh in the down tube and a brown bench saddle. A round headlamp on a tall bracket, twin rear coil shocks, mechanical discs and 20 x 4.0 tyres on spoked rims. It weighs 123.9 lb, carries 330 lb, and it is listed at 20 to 37 miles. The battery sits in a boxed down tube with its own lock, and the frame is available in gloss black or silver-grey.\u003c\/p\u003e\n\n\u003cp\u003eThe frame is a moped loop with the battery in a boxed down tube and a brown bench that runs over the rear wheel, held by two coil shocks with orange adjuster rings. The headlamp is a round unit on a tall bracket above the front fender, and the bars are a high-rise bend with a cross brace.\u003c\/p\u003e\n\n\u003cp\u003eAt 123.9 lb it is a heavy machine, and the reason is the steel frame and the 330 lb rating. That is the honest trade: you get a bike that does not flex under a heavy rider, and you give up the ability to lift it onto a roof rack or carry it up stairs.\u003c\/p\u003e\n\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\n\u003cul class=\"hkm-glance\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e750W Rear Hub\u003c\/strong\u003e — 48V system, single motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48V 13Ah Pack\u003c\/strong\u003e — 624Wh in the down tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 to 37 Miles\u003c\/strong\u003e — Listed range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwin Coil Shocks\u003c\/strong\u003e — Orange adjuster rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Discs\u003c\/strong\u003e — Front and rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 x 4.0 Tires\u003c\/strong\u003e — Knobby casing on spoked rims\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrown Bench\u003c\/strong\u003e — Long saddle over the rear wheel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound Headlamp\u003c\/strong\u003e — On a tall bracket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e123.9 lb\u003c\/strong\u003e — Steel frame and a 330 lb rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e330 lb Load\u003c\/strong\u003e — Rated carry weight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7-Speed Drivetrain\u003c\/strong\u003e — Derailleur at the rear wheel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack or Silver\u003c\/strong\u003e — Two frame colours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eMoped Frame and a Round Lamp\u003c\/h2\u003e\n\n\u003cp\u003eThe frame is a black or silver moped loop with the battery in a boxed down tube and a brown bench running over the rear wheel on two coil shocks. The headlamp is a round unit on a tall bracket above the front fender, and the bars are a high-rise bend with a cross brace.\u003c\/p\u003e\n\n\u003cp\u003eThe wheels are 20 x 4.0 knobbys on spoked rims with black hubs, and the tyres carry a Chaoyang casing mark. Spokes can be trued with a key after a knock, and the wide casing is what lets a 123.9 lb bike cross sand without digging in.\u003c\/p\u003e\n\n\u003cp\u003eThe rear suspension is two coil shocks with orange adjuster rings, which is enough for a curb and a rutted track without the weight of a linkage. Brakes are mechanical cable discs at both ends with a barrel adjuster at the lever, and the drivetrain is a seven-speed derailleur.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eFrame: moped loop, black or silver\u003c\/li\u003e\n\u003cli\u003eBattery: 48V 13Ah in the down tube\u003c\/li\u003e\n\u003cli\u003eWheels: 20 in spoked, 4.0 knobby\u003c\/li\u003e\n\u003cli\u003eFork: straight leg with fender\u003c\/li\u003e\n\u003cli\u003eRear: twin coil shocks, orange rings\u003c\/li\u003e\n\u003cli\u003eBrakes: mechanical cable disc\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFitted as shipped: the round headlamp, front and rear fenders, the brown bench, a kickstand and the pedals. The bars carry the throttle, the assist switch and the brake levers, and the down tube box has its own lock and charge port.\u003c\/p\u003e\n\n\u003ch2\u003e750W and 624Wh\u003c\/h2\u003e\n\n\u003cp\u003eThe motor is a 48V 750W rear hub driving through a seven-speed derailleur. On a 123.9 lb bike the motor is doing real work, which is why the gears matter: you can drop a cog and add leg power instead of holding the throttle open and watching the battery bar fall.\u003c\/p\u003e\n\n\u003cp\u003eThe pack is 48V 13Ah, 624Wh, in the down tube box. The listed range is 20 to 37 miles: 37 is pedalling at low assist on flat ground, 20 is throttle and hills. Charge it through the port on the box where the bike is parked.\u003c\/p\u003e\n\n\u003cp\u003eThe weight and the rating go together. A 123.9 lb frame that carries 330 lb is built for an adult with a pack, and it stays planted at speed. It is not a bike you push home, so plan the loop on the lower range figure rather than the higher one.\u003c\/p\u003e\n\n\n\n\u003ch2\u003eWho It Fits and How It Rides\u003c\/h2\u003e\n\n\u003cp\u003eThe bench is long and low and the bars are high, so it suits riders from about 5 ft 5 in to 6 ft 3 in. The 330 lb rating covers a heavy adult with a pack. At 123.9 lb it is a two-person lift onto a truck bed, which is the main practical limit on the bike.\u003c\/p\u003e\n\n\u003cp\u003eOn gravel and packed dirt it tracks straight and the twin coil shocks keep the bench level, and the fat casing floats over sand. On pavement it is heavy and the knobbys hum above 15 mph. It is a fire road and campground bike, and it wants a ramp or a truck rather than a rack.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eFire roads and gravel tracks\u003c\/li\u003e\n\u003cli\u003eCampgrounds and private ground\u003c\/li\u003e\n\u003cli\u003eA heavy rider who needs the 330 lb rating\u003c\/li\u003e\n\u003cli\u003eNot for stairs a roof rack or a bike lane\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\n\u003cdiv class=\"hkm-tablewrap\"\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBike\u003c\/td\u003e\n\u003ctd\u003eAssembled frame, 750W hub, 48V 13Ah pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e48V 13Ah 624Wh, in the down tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003e48V charger with a US plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTools\u003c\/td\u003e\n\u003ctd\u003eHex keys and a spanner for the axles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeys\u003c\/td\u003e\n\u003ctd\u003eBattery keys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePedals\u003c\/td\u003e\n\u003ctd\u003ePlatform pair, left side reverse-threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFenders\u003c\/td\u003e\n\u003ctd\u003eFront and rear, fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight\u003c\/td\u003e\n\u003ctd\u003eRound headlamp on a bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003ctd\u003eAssembly guide and registration card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStand\u003c\/td\u003e\n\u003ctd\u003eSide stand, frame mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003c\/div\u003e\n\n\u003cp class=\"hkm-note\"\u003eBefore the first ride: fit the front wheel and torque the axle, set the bars square to the fork, set the rear spring preload for your weight, bed the cable discs in with ten firm stops and charge the pack. Budget 40 to 60 minutes, most of it on the front wheel, and check every fastener after the first hour.\u003c\/p\u003e\n\n\u003ch2\u003eColor and Finish\u003c\/h2\u003e\n\n\u003cp\u003eTwo frame colours, gloss black and a silver-grey, both with a brown bench, black fenders, fork, bars and rims. The only other colour is the orange adjuster ring on each rear shock, which is the one detail that stops the bike reading as all-black.\u003c\/p\u003e\n\n\u003cp\u003eTouch-up paint is available in both frame colours. The wear points are the down tube box where a boot rubs it, the bench edges and the fork lowers.\u003c\/p\u003e\n\n\u003ch2\u003eBattery Care and Maintenance\u003c\/h2\u003e\n\n\u003cp\u003eCharge between 20 and 90 percent for everyday use and take it to full about once a month. The pack lives in the down tube box, so charge it where the bike is parked and keep that spot above freezing. If the bike will sit for a month, leave it around half charge.\u003c\/p\u003e\n\n\u003cp\u003eCheck tyre pressure before every ride at 15 psi on pavement and 8 on soft ground, and check the spokes and axle nuts after the first 50 miles. The cable discs need the barrel adjuster turned as the pads wear, and the pads are a five-minute swap. Keep the chain oiled so the seven gears shift.\u003c\/p\u003e\n\n\n\n\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003cdiv class=\"hkm-tablewrap\"\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHKM-7558355\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eFat tire electric bike\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e48V 750W brushless rear hub\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e48V 13Ah lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery capacity\u003c\/td\u003e\n\u003ctd\u003e624Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e20 to 37 miles, listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrivetrain\u003c\/td\u003e\n\u003ctd\u003e7-speed derailleur\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrakes\u003c\/td\u003e\n\u003ctd\u003eMechanical cable disc, front and rear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork\u003c\/td\u003e\n\u003ctd\u003eStraight leg with fender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear suspension\u003c\/td\u003e\n\u003ctd\u003eTwin coil shocks, orange rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTires\u003c\/td\u003e\n\u003ctd\u003e20 x 4.0 knobby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheels\u003c\/td\u003e\n\u003ctd\u003eSpoked, 20 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame\u003c\/td\u003e\n\u003ctd\u003eMoped loop, black or silver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eBrown bench, fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e123.9 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad capacity\u003c\/td\u003e\n\u003ctd\u003e330 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRider height\u003c\/td\u003e\n\u003ctd\u003e5 ft 5 in to 6 ft 3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColours\u003c\/td\u003e\n\u003ctd\u003eGloss black or silver-grey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLighting\u003c\/td\u003e\n\u003ctd\u003eRound headlamp on a bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFenders\u003c\/td\u003e\n\u003ctd\u003eFront and rear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePedals\u003c\/td\u003e\n\u003ctd\u003ePlatform pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStand\u003c\/td\u003e\n\u003ctd\u003eSide stand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly\u003c\/td\u003e\n\u003ctd\u003eFront wheel, preload, charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse case\u003c\/td\u003e\n\u003ctd\u003eFire roads, gravel, campgrounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdiv class=\"hkm-q\"\u003e\n\u003ch3\u003eHow far does it go on a charge?\u003c\/h3\u003e\n\u003cp\u003e20 to 37 miles from the 624Wh pack. 37 assumes pedalling at low assist on flat ground; 20 is realistic with the throttle open, a heavy rider or hills. At 123.9 lb this is not a bike to push home, so plan on the lower number.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hkm-q\"\u003e\n\u003ch3\u003eWhy is it so heavy?\u003c\/h3\u003e\n\u003cp\u003eA steel frame and a 330 lb load rating. The weight buys a bike that does not flex under a heavy rider at speed, and it costs you the ability to lift it onto a roof rack. It is a two-person lift onto a truck bed, and a ramp is easier than a rack.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hkm-q\"\u003e\n\u003ch3\u003eIs 750W enough for this weight?\u003c\/h3\u003e\n\u003cp\u003eWith the seven-speed drivetrain, yes. The motor pulls the bike away from a stop and holds speed on a grade, and the gears let you add leg power where the motor runs out. Without the gears a 123.9 lb bike on 750W would be hard work on a climb.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hkm-q\"\u003e\n\u003ch3\u003eAre the brakes hydraulic?\u003c\/h3\u003e\n\u003cp\u003eNo, they are mechanical cable discs front and rear with a barrel adjuster at the lever. They are adequate for the speeds this bike runs and simple to service, but on a heavy machine with a heavy rider they want both levers.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hkm-q\"\u003e\n\u003ch3\u003eWho is it sized for?\u003c\/h3\u003e\n\u003cp\u003eRiders from about 5 ft 5 in to 6 ft 3 in on a long low bench with high bars, and heavier riders in particular because the rating is 330 lb. Shorter riders will find the reach long, so sit on one before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hkm-q\"\u003e\n\u003ch3\u003eWhat does assembly involve?\u003c\/h3\u003e\n\u003cp\u003eFit the front wheel and torque the axle, set the bars square to the fork, set the rear spring preload for your weight, bed the cable discs in with ten firm stops and charge the pack. Budget 40 to 60 minutes, then check every fastener after the first hour.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eService and Policies\u003c\/h2\u003e\n\n\u003cp\u003eCoverage that lasts beyond the box. Orders ship free with a tracking number in 2 to 5 business days. From delivery, the product is protected for 180 days against manufacturing defects and transit damage, returnable within 30 days for a full refund, and covered by a 24-month parts-and-labor warranty on manufacturing defects. Four policies, one idea: ship it free, protect it for 180 days, take it back for 30, and stand behind it for two years.\u003c\/p\u003e\n\n\u003cdiv class=\"hkm-policy-grid\"\u003e\n\u003cdiv class=\"hkm-policy-card\"\u003e\n\u003ch3\u003eFree Shipping on All Orders\u003c\/h3\u003e\n\u003cp\u003eEvery order ships free. Handling Time: 0-1 business days (Monday to Friday). Transit Time: 2-5 business days (Monday to Friday). A tracking number is emailed as soon as the parcel leaves our warehouse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hkm-policy-card\"\u003e\n\u003ch3\u003e180 Days Purchase Protection\u003c\/h3\u003e\n\u003cp\u003eYour purchase is protected for 180 days from the delivery date against manufacturing defects and damage in transit. If something arrives wrong, we make it right.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hkm-policy-card\"\u003e\n\u003ch3\u003e30 Days Money-Back Guarantee\u003c\/h3\u003e\n\u003cp\u003eNot completely satisfied? Request a return within 30 days of delivery for a full refund. We keep the process simple and hassle-free.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hkm-policy-card\"\u003e\n\u003ch3\u003e24 Months Warranty Service\u003c\/h3\u003e\n\u003cp\u003eThe product is covered by a 24-month warranty from the delivery date against manufacturing defects. Coverage includes parts and labor; normal-wear items are excluded.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"hkm-close\"\u003eHKM-7558355 · fat tire electric bike · 48V 750W rear hub with a 7-speed drivetrain · 48V 13Ah 624Wh pack in the down tube · 20 to 37 miles listed range · mechanical cable disc brakes front and rear · twin coil shocks with orange adjuster rings at the rear · 20 x 4.0 knobby tires on spoked rims · brown bench saddle and a round headlamp on a tall bracket · 123.9 lb with a 330 lb load rating · sized 5 ft 5 in to 6 ft 3 in · gloss black or silver-grey · charger in the box · UL listed · built for fire roads and campgrounds rather than commuting · a boxed down tube with its own lock and charge port · a brown bench held by two coil shocks with orange rings · 330 lb rating so a heavy rider is not the limit\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"HKM-7558355 Fat Tire E-Bike Runs a 750W Hub on 20 x 4.0 Tires With a Brown Bench Saddle and Seven Speeds\", \"sku\": \"HKM-7558355\", \"mpn\": \"Hekomart-HKM-7558355\", \"brand\": {\"@type\": \"Brand\", \"name\": \"Hekomart\"}, \"description\": \"A 20-inch fat bike in black or silver with a 750W hub, a 48V 13Ah pack worth 624Wh in the down tube and a brown bench saddle. 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