Fat bike tyre set 20x4.0 with knobby treadThis fat bike tyre set 20x4.0 consists of an outer tyre with a coarse knobby tread and an inner tube with a Schrader (car) valve, in size 20 x 4.0 inch (ETRTO 100-406). It is a replacement for 20 inch electric fat bikes. The knobby tread gives grip on sand, gravel, mud and forest trails.Got a puncture, or is your fat bike tyre simply worn out? With this set you replace the outer tyre and inner tube in one go. Before ordering, check the size on the sidewall of your current tyre: 20x4.0, 20x4.00 or 100-406. Also look at the valve on your current inner tube, so you know for sure the length suits your rim.Benefits
Complete set: outer tyre and inner tube
Size 20x4.0 (ETRTO 100-406), the standard size for many 20 inch e-fatbikes
Knobby tread for grip on loose and rough terrain
Schrader valve: inflate with a car pump, compressor or bike pump with a Schrader head
Help choosing: send us a photo of your current tyre
Specifications
Brand
ZenXstore
Type
Tyre set (outer tyre + inner tube)
Tyre size
20 x 4.0 inch
ETRTO
100-406
Tread
Knobby tread (off-road)
Inner tube valve
Schrader (car) valve
Valve length
Not specified, ask us and we'll measure it
Contents
1 outer tyre + 1 inner tube
EAN
Not specified
Compatible withElectric and regular fat bikes with 20 inch wheels and 20x4.0 or 20x4.00 tyres (ETRTO 100-406), such as the DYU M20. If your rim has a narrow valve hole for a Presta valve, a Schrader valve won't fit without drilling out the hole.What's in the box
1x fat bike outer tyre 20x4.0 with knobby tread
1x fat bike inner tube 20x4.0 with Schrader valve
Shipping and service
Free shipping within the Netherlands
Shipped from our own warehouse in Rosmalen (NL), no dropshipping
Orders are processed within 1-2 working days; delivery in the Netherlands and Belgium usually within 2-3 working days
14-day cooling-off period
Personal customer service via support@zenxstore.nl
Frequently asked questionsWill this tyre fit my fat bike?Does the sidewall of your current tyre say 20x4.0, 20x4.00 or 100-406? Then this set will fit.What valve length does the inner tube have?The valve length is not specified. Compare it with your current inner tube and feel free to ask us to measure it before you order; a valve that's too short is a common reason for returns.What is a Schrader valve?A Schrader valve is the same valve used on car tyres. You inflate it with a car pump, a compressor or a bike pump with a Schrader head.Is a knobby tread suitable for the city?Yes, but on tarmac a knobby tread rolls a bit louder and heavier than a smooth tread. On sand, gravel and forest trails, however, you get more grip.Find more fat bike parts in our e-mobility collection.
DYU M20 electric fat bike with 20 inch tyres and a large 48V batteryThe DYU M20 electric fat bike is an all-terrain e-bike with 20 x 4.0 inch fat tyres, an aluminium frame and a large 48V 18.2Ah battery (873 Wh). DYU quotes a range of up to 160 km with pedal assist. The M20 also has an adjustable front fork, mechanical disc brakes front and rear, lights and IP54 splash protection.The wide tyres let you ride comfortably over cobblestones, gravel, sandy paths and forest trails. You choose how you receive the fat bike: collect it yourself in Rosmalen, have it delivered, or have it delivered and made ready to ride, so it arrives assembled and adjusted. Read the Dutch rules below carefully, because a fat bike only counts as a bicycle if it meets them.Benefits
48V 18.2Ah battery (873 Wh), range of up to 160 km with pedal assist
20 x 4.0 inch fat tyres for grip on sand, gravel and forest trails
Adjustable front suspension for extra comfort
Mechanical disc brakes front and rear
Headlight and rear light
IP54: splash resistant
Choice of collection, delivery, or delivery made ready to ride
Specifications
Brand
DYU
Model
M20
Type
Electric fat bike, non-folding
Tyres
20 x 4.0 inch
Motor
250W rated (EU version according to DYU)
Maximum assisted speed
25 km/h (EU version)
Battery
48V 18.2Ah lithium-ion (873 Wh)
Range
Up to 160 km with pedal assist (depending on weight, terrain and assist level)
Charging time
7-8 hours
Weight
Approx. 40 kg (DYU specification)
Maximum load
120 kg
Frame
Aluminium
Suspension
Adjustable front fork
Brakes
Mechanical disc brake front and rear
Protection rating
IP54
EAN
Collection: 6094040439450 · Delivery: 6094040439451 · Delivery + ready to ride: 6094040439452
E-bike rules in the NetherlandsIn the Netherlands, an electric bike counts as a regular bicycle (pedelec) if the motor has a maximum rated power of 250W and only assists while you pedal, up to 25 km/h. A throttle or a purely electric riding mode that works above 6 km/h falls outside those rules: the bike is then classed as a moped requiring a registration plate, insurance and a driving licence. Tuning is not permitted. DYU also lists a purely electric riding mode without pedalling for the M20. If that mode is active on your bike, you may not ride it on public roads or cycle paths in the Netherlands without a registration plate; only use it on private land. Ask us before you order which version you will receive.What's in the box
1x DYU M20 electric fat bike
1x charger
1x user manual
Shipping and service
Free shipping within the Netherlands
Shipped from our own warehouse in Rosmalen (NL), no dropshipping
Orders are processed within 1-2 working days; delivery in the Netherlands and Belgium usually within 2-3 working days
14-day cooling-off period
Personal customer service via support@zenxstore.nl
Frequently asked questionsIs the DYU M20 legal on cycle paths in the Netherlands?Only if the motor assists exclusively while pedalling, up to 25 km/h and with a maximum rated power of 250W. With an active throttle or purely electric mode above 6 km/h, it is classed as a moped.How far can I ride on the DYU M20?DYU quotes up to 160 km with pedal assist under favourable conditions. With headwinds, a heavier rider, lots of off-road riding or a high assist level, the range will be shorter.What does delivered and made ready to ride mean?The fat bike is delivered assembled, adjusted and checked, so you can ride off straight away. With delivery only, you do the final assembly yourself.What tyre size does the M20 have?The M20 runs on 20 x 4.0 inch fat bike tyres. Replacement 20x4.0 fat bike tyre sets are also available at ZenXstore.View all models in our DYU bikes collection.
DYU C9 folding electric fat bike with long rangeThe DYU C9 folding electric fat bike is built for long rides: its 48V 15.6Ah battery gives you up to approx. 150 km with pedal assistance. The 250W motor assists up to 25 km/h, within the rules for a regular e-bike in the Netherlands, and handles slopes of up to 15 degrees. The 20 x 3.0 inch fat tyres deliver grip and comfort on tarmac, gravel and sand.Despite its long range, the C9 folds down to around 97 x 47 x 76 cm, so it fits in a car boot or a campervan. Hydraulic disc brakes provide powerful, well-controlled braking, even when you are carrying luggage. The aluminium frame, IP54 protection against splashing water and bright lights make the C9 suitable for everyday use in every season.BenefitsRange up to approx. 150 km with pedal assistance250W motor, assistance up to 25 km/h, slopes up to 15°48V 15.6Ah lithium-ion battery20 x 3.0 inch fat tyresHydraulic disc brakesFolding aluminium frameIP54: resistant to splashing water and rain showersSpecificationsBrandDYUModelC9TypeFolding electric fat bikeWheel size20 x 3.0 inchMotor250W nominalMaximum assisted speed25 km/hThrottleNo, EU version with walk assist up to 6 km/hBattery48V 15.6Ah lithium-ionRangeUp to approx. 150 km with pedal assistance (depending on rider weight, terrain and assist level)Charging time7-8 hoursClimbing abilityUp to 15°FrameAluminium alloyWeight30 kgMaximum load120 kgRecommended rider height160-195 cmBrakesHydraulic disc brakesProtection ratingIP54DisplayLED battery displayDimensions unfolded172 x 64.5 x 114-128.5 cmDimensions folded97 x 46.5 x 76 cmE-bike rules in the NetherlandsIn the Netherlands, an electric bike counts as a regular bicycle (pedelec) if the motor has a maximum nominal output of 250W and only assists while you pedal, up to 25 km/h. We supply the C9 in the EU version: pedal assistance up to 25 km/h and only a walk-assist function up to 6 km/h, so it stays within these rules. Derestricting (tuning) is not permitted.Warranty and serviceZenXstore is an official DYU dealer. You get a 2-year warranty on the frame and 1 year on the battery and motor; your statutory rights always continue to apply. Warranty, repairs and maintenance are handled by appointment at our location in Rosmalen.Shipping and serviceShipped from our own warehouse in Rosmalen (NL), no dropshippingCollection by appointment is also possibleOrders are processed within 1-2 working days14-day cooling-off periodPersonal customer service via support@zenxstore.comFrequently asked questionsHow far can I ride on the DYU C9?DYU quotes up to 150 km with pedal assistance in favourable conditions. Headwinds, a heavier rider, sand and a high assist level reduce the range.Does the C9 fit in a car when folded?Folded, the C9 measures around 97 x 47 x 76 cm. It fits well in most mid-size car boots and campervans; bear in mind its weight of 30 kg.What is the difference from the DYU M20?Both have 20-inch fat tyres. The C9 folds and has hydraulic brakes; the M20 has a fixed frame with a rugged motorbike-style design.Take a look at the other models in our DYU bikes collection.
DYU UX BMX electric fat bike with 20-inch tyresThe DYU UX BMX electric fat bike combines the bold look of a BMX with the comfortable 20 x 3.0 inch fat tyres of an all-terrain e-bike. A 250W motor and a removable 48V 13Ah battery give a range of up to approx. 100 km with pedal assistance. Assistance cuts out at 25 km/h, within the rules for a regular e-bike in the Netherlands.The fat tyres offer plenty of grip and cushioning on cobblestones, gravel paths and in the dunes. The battery is easy to remove so you can charge it indoors. With multiple assist levels, walk assist, disc brakes, an LED battery display and bright front and rear lights, the UX BMX is ready for everyday riding and weekend trips.Benefits250W motor with pedal assistance up to 25 km/hRemovable 48V 13Ah battery, range up to approx. 100 km20 x 3.0 inch fat tyres for grip and comfortMultiple assist levels and walk assistDisc brakes for safe brakingLED battery display, headlight and rear lightUL 2849-certified electrical systemSpecificationsBrandDYUModelUX BMXTypeElectric fat bike (BMX style)Wheel size20 x 3.0 inchMotor250W nominalMaximum assisted speed25 km/hThrottleNo, EU version with walk assist up to 6 km/hBattery48V 13Ah lithium-ion, removableRangeUp to approx. 100 km with pedal assistance (depending on rider weight, terrain and assist level)WeightApprox. 26 kgMaximum load120 kgRecommended rider height165-188 cmBrakesDisc brakesDisplayLED battery displayLightingHeadlight and rear lightCertificationUL 2849E-bike rules in the NetherlandsIn the Netherlands, an electric bike counts as a regular bicycle (pedelec) if the motor has a maximum nominal output of 250W and only assists while you pedal, up to 25 km/h. We supply the UX BMX in the EU version: pedal assistance up to 25 km/h and only a walk-assist function up to 6 km/h, so it stays within these rules. Derestricting (tuning) is not permitted.What's in the box1x DYU UX BMX electric fat bike1x charger2x pedalsAllen keys (3x) and spanners (2x)1x user manualWarranty and serviceZenXstore is an official DYU dealer. You get a 2-year warranty on the frame and 1 year on the battery and motor; your statutory rights always continue to apply. Warranty, repairs and maintenance are handled by appointment at our location in Rosmalen.Shipping and serviceShipped from our own warehouse in Rosmalen (NL), no dropshippingCollection by appointment is also possibleOrders are processed within 1-2 working days14-day cooling-off periodPersonal customer service via support@zenxstore.comFrequently asked questionsIs the DYU UX BMX legal on cycle paths?Yes, in the EU version the motor only assists while you pedal, up to 25 km/h, with a maximum nominal output of 250W. That means it counts as a regular electric bike.Can I charge the battery separately?Yes, the 48V 13Ah battery is removable. You charge it indoors while the bike stays in the shed.What is the difference from the DYU M20?Both have 20-inch fat tyres. The UX BMX is lighter (approx. 26 kg) with a sporty BMX look; the M20 has a larger battery and a rugged motorbike-style design.Take a look at the other models in our DYU bikes collection.
ZenX SJT-300E fast charger 54.6V 5A for 48V batteriesThe ZenX SJT-300E fast charger charges 48V lithium-ion batteries of e-bikes, fat bikes and e-scooters at 54.6V and 5A. Because a standard charger usually delivers 2A, this fast charger gets your battery full again in considerably less time. Ideal if you ride long distances every day, want to top up your fat bike quickly between two rides, or want a second charger for work. The charger is suitable for the OUXI V8 and V20, among others.The SJT-300E is available with a round XLR 3-pin plug (GX16, 1+3 pins) or with a 5.5 x 2.1 mm DC plug; you choose when ordering. Safety: only use this charger for 48V batteries with a charging voltage of 54.6V. Never charge a 36V or 52V battery with this charger, check that your battery can take a 5A charging current, and preferably charge in a dry, cool place and not unattended.Benefits
5A charging current: full faster than with a standard 2A charger
54.6V output, the correct charging voltage for 48V batteries
Protected against overcharging and overheating
Available with GX16 / XLR 3-pin or DC 5.5 x 2.1 mm plug
Compact enough to carry in your bike bag
Ideal as a second charger for work or holidays
Specifications
Brand
ZenX (ZenXstore)
Model
SJT-300E
Type
Fast charger for 48V lithium-ion battery
Output voltage
54.6V DC
Charging current
5A
Connector
XLR 3-pin / GX16 (1+3 pins) or DC 5.5 x 2.1 mm
Protection
Overcharge and overheating protection
Compatible with
OUXI V8 and OUXI V20 fat bikes (48V)
Other 48V e-bikes and fat bikes with a 54.6V charger
48V e-scooters with a matching charging port
What's in the box1x ZenX SJT-300E fast charger 54.6V 5AShipping and service
Free shipping within the Netherlands
Shipped from our own warehouse in Rosmalen (NL), no dropshipping
Orders are processed within 1-2 working days; delivery in the Netherlands and Belgium usually within 2-3 working days
14-day cooling-off period
Personal customer service via support@zenxstore.nl
Frequently asked questionsHow much faster does a 5A charger charge than a 2A charger?The charging time depends mainly on the capacity of your battery. Roughly, you divide the capacity in Ah by the charging current: an empty 15Ah battery needs a good seven hours at 2A and about three hours at 5A, plus a little extra time at the end of charging. So with 5A you're done roughly twice as fast.Is fast charging bad for my battery?For most 48V e-bike batteries with a capacity of about 10Ah or more, 5A is a normal charging current. For small batteries, or batteries for which the manufacturer specifies a lower maximum charging current, a slower charger is the better choice. If in doubt, check the manual of your bike or battery.Will this charger fit my OUXI V8?Yes, the OUXI V8 and V20 are 48V fat bikes and this charger delivers the correct charging voltage of 54.6V. Do choose the plug that fits your charging port. Not sure which version you need? Send us a photo of your battery's charging port.How do I know if my battery is 48V?Check the label on your battery or your current charger. If the battery says 48V, or your charger shows an output voltage of 54.6V, this fast charger matches in terms of voltage. If it says 36V, 42V, 52V or 58.8V, this charger is not suitable.You'll find more chargers and parts in our E-mobility collection.