Fiido D4S Ebike Review After 6 Months And Over 260km 

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Very nice review. The kind of real life review of the bike daily usage. Thanks a lot.

A very thorough update bro, looks like fun too!

Watched your lovely video last week and bought one its a great bike

great video thanks .... I just purchased one from fiido on the back of this with d3s mudguards cheers I just need the bike rack and back light now .....

Cool little brake light ! Nice review !

I'm on 200km and loving every second of it like you. I changed my front break on day one by a semi hydraulic and cheap Xtech (didn't fit at the rear as it hits the motor), and it is so much smoother. I'm after another brand that fits D4S on the rear wheel too. Nice video thanks

Good little bike i had mine about 6 months aswell. I decorated mine with a load of Rock stickers a collage kinda thing from ebay that's made it look alot less grannyish and more BMX like 🤣. No probs at all with it really.

Will take a look at this bike!

cool bike and review

Im from germany i will order the bike too for me saw many videos now seems everyone likes it 😁

Hi@MarcRCAddict: thank you for the review. Really liked it. I bought now myself a pair of them. One think now I am struggling with is a fitting luggage carrier that I see you counter fited. Could you please share the link of the cycle carrier you used ony your bike? Thank you from Germany.

Would love one of these - wish i could test ride one before i buy though!

Thanks for the feedback. What are the references of the rear rack please

Trust me mate, the brakes are the same on all of them I’ve the exact same problem with the squeak but I don’t wanna touch them at all until they were down either

Very Nice share !

Thank you for this review. How is it so far?

Is the unlock mode simply holding throttle on full, pulling brake on full and switching bike back on? Or is there another method?

I hate the fenders. I had the worst time fitting them until I just gave up. I might just buy my own.

Hi Marc, I just bought this bike and I'm waiting for it to be delivered. I am trying to figure out how to lock the bike properly to a bike rack will I am at my workplace, since I can't bring it inside. I guess you use the u-lock for the posterior wheel and frame, but what about the front wheel? How do you lock it? It looks like there's no frame hole on the front part of the bike. Thank you for any advice on this

Hi, nice video! What is the range you get when you only use the 'electric scooter' mode? :)

Hello Marc, can you tell me link of the store where you got the back rack? Is it suitable for a baby chair? Thanks

to install the pannier rack, did you use any screw spacer to fit with the bike? The reason of my question it is because I had the universal pannier rack from Decathlon and to fit with the D4S bike, I used 2 spacer near the gear shift mechanism in the centre of the rear wheel. Thank you.

Hi, can you tell me what pannier you bought from Halfords and did you have to adapt it?

Would this bike be suitable for 6ft 1" guy doing a 5 mile each way commute? I'm looking to buy my first E-bike to replace my morning bus ride. Cheers

Hi. I am Adam. Where have you bought the bike luggage rack please ? Thanks for the answer and the video. Regards. Adam

When folded, does it have a clip to hold the bike together to enable it to be carried easily?

How is it like pedalling this bike without using any electrical power? Is it possible to ride comfortably at all, or are the pedals mostly there to assist riding uphill or when low on battery? I had a fiido d1 which I loved, but pedalling was hard as hell (it was single speed). Thanks

Hey I started to have difficulties to fold my fiido d4s and I sprayed some wd40 it did wonders. I have also problems with the pedals cracking I guess its the pedal box

Are the breaks set the UK way. I saw a review from an Austrian guy who was saying they were reversed. Thanks

My D4s has started to make an annoying flexing,creaking noise..doesn't affect performance but i cant trace where the noise is coming from...any ideas?

does the handlebar feel a bit lose when you push the handle bar forward or

hi guys just wondered about piggy backing this bike with a second battery ?do you think i could

Does yours have smooth steering (turning left/right). Mine have fixed position in the steering radius. Where the steering stops into a little "bump". Both to left and right. Don't know if it's as intended, or fatly bearings.

Great review..👍 what weight are you🤔

Hi, very nice video and nice bike. Where did you get the bike rack from please? I bought one from decathlon recently but it didn't fit and I had to return it... Any advice will be much appreciated. Thanks!

How much distance do you travel using turbo mode?

Hi Marc hows the quality? See so much on these bikes seems the quality is hit and miss, do you use it in the rain?

Hi Marc! If you run out of battery how hard is it to ride your bike? This thing is very important to me.

Hi, where did you get the rear light from please?

Hi, do you know if im able to remove the gas handle to make the bike road legal in Germany.

Todas las bicis eléctricas al llevar motor trasero funcionan mal. Siempre hay que comprobar que la rueda delantera y trasera en vacío rueda suave y dura bastante el rodamiento. Si ves que se para a las dos vuelatas hay que desmontar la rueda y aflojar el eje siempre que no tenga holgura y también comprobar que las pastillas no rozan en vacío y sin apretar la maneta. Si rozan es que no está bien puesto el freno hidraúlico y hay que desaflojar los dos tornillos que tiene en la parte superior frenar fuerte y entonces apretarlos sin soltar la maneta asi nos aseguramos que están perfectamente acoplados. También se el truco de hacerla legal y que no lleve acelerador físico en el puño para que no nos denuncien. El truco es quitarlo del manillar y poner otro (el más pequeño que exista) dentro de la controladora o fuera pero en algún hueco (que lo hay) y rellenerlo de silicona caliente para que no se mueva ni le entre agua. El truco está en que llevas acelerador y el circuito envía señal a la controladora pero en posición cero sin accionarlo. Asi ya no tenemos acelerador físico y no puedes acelerar prácticamente al no llevarlo. Tu bici es legal al 100 por 100. Pues bien los SUPER INGENIEROS de Fiido no saben cómo anularlo y quitarlo del manillar dicen que si lo desenchufas a error y la bici no arranca. Pues bien en Aliexpress hay aceleradores miniatura que son pequeñisimos y son válidos para mi "invento" jajaja. Con lo fácil que hubiera sido programar la controladora para que la función acelerador se anule. Aviso que las multas son enormes y estás haciendo una acción contra la Seguridad Vial en España si te cogen y ven que llevas acelerador. Ya hay muchas bicis eléctricas que venden en España que no lo llevan al darse cuenta del fallo. Pero nosotros con nuestra magnífica Fiido nos arriesgamos a la sanción gorda. Lo de deslimitar la bici lo veo una tontería ya que te puedes dar un golpe o atopellar a alguien y te buscas la ruina. Además con mi invento no se puede deslimitar.

so the kryptonite lock is a standard one or small one?

Marc have you a code for the back carrier from Halfords, they only have a crappy one in my local Halfords. If I can get a code they said they would order one in please.

HI mate, how many miles/km would you say it can do with only using the throttle? thank you

mine is now 301km old and yesterday i had my first broken spoke on the rear wheel. Strugling to find the exact length but eventually managed to ordered some 130mm long (not st.steel), nothing on fiido webside. I'll do it myself or it would be an expensive job to have done elsewhere. I hope this is not a first of a series of spoke failure that would force me to redo to entire wheel, and if this is the case it would be the expensive price to pay for a cheap non stainless steel bike. The entire transmission is made from the cheapest carbon steel (chain, sproket, and 6 gear casset) and I'm ok changing them later for better ones. If someone had a link for good stainless spokes for the fiido 4DS please let me know.....PS I wish there was a connector for the motor wire near the rear axle......but it doesnt.

Have you changed the seat post clamp ?? If you have what size did you order. Nice video 👍

Any snapped spokes on the rear wheel yet?

Awsome back rack. Could you share where you have bought one?

How much was import customs duty on this item? did it come from China or Czech Republic?

Where did you get your mudguards from

Hi, I forgot the bike in charge 100%, Is it harmful ? What’s wrong with the battery?

Could anyone who owns the bike please answer me if the D4S would be suitable for a long commute 20km to and from work. Thanks

Mine got a broken spoke and flat tire in 3 weeks. I wonder if there's a problem with my driving. I throttle more than pedaling to go to work. Also there are bumpy roads along the way. I wonder if it is the bike not designed for speed or me using it like a motorcycle.

where did you get the bike lock from

Is this ebike classed as legal in the uk, considering it has a throttle do they class it as needing insurance ect

Sadly the link to buy this doesn't work. Any other links I can use? Cheers

How have you found the lack of suspension?

I used some Teflon lubricant spray on the folding mechanism. Completely loosened up. It was very stiff out of the box.

Its been a year, how is it holding up?

can you disable the throttle with a hack?

After unlock speed code How to lock again and use default speed 😅

How easy is it to mostly peddle it if you decide to turn off the battery or are running low?

Is the fiido name on frame a sticker or printed on?

Hi there, My son got one of these bikes 3 months ago and today we noticed it’s not charging any ideas what to do thanks.

How do I see the overall km in the display?

Have you tested any bikes since

Is it easy to get it up and down the stairs If I don't have an elevator for my house?

Are u still using this bike mate I just ordered one today on eBay for £630

Thanks for the great review. I'm thinking of getting myself one of these to help get myself out the house more since coming down with long Covid a year ago, which means any kind of actual "exercise" has to be avoided for the time being (as someone with FM, I'm sure you get it). You mentioned that the throttle won't be enough by itself on a steep hill - what kind of gradient would it handle before needing the pedal assist do you think? And, if I do the combination you suggested (use the throttle while pedalling a bit), how much leg effort is required? The hills here aren't *steep* steep, but did get the heart pumping and the legs working back when I could ride them on a normal bike.

Hi,can you tell me the model of the rack,or a link,thank you!

Hold on. Should we only recharge when battery is gone? I recharge every night.

Sadly please all be aware that this bike is illegal in UK and EU. Why? It does not conform to UK and EU pedelec law. It has a twist throttle that can propel the bike without pedal assist. Hence bike has to be registered as a moped that requires insurance and driving licence. However, there is a solution disconnect the throttle, and the motor only assists when pedalling and cuts out when not pedalling . I super glued the throttle, hence non functional , should anybody wish to test. The degree of pedal assist can be changed by the plus and minus display buttons at three levels of pedal assist power. Not a complete cadence solution, but good enough . Acceleration with pedal assist is pretty smooth. Deceleration, the motor cuts out as stated when not pedalling. This applies to DS2 and DS4 that have the same controller. After nearly 2 years of use on my DS2 (has rear suspension which is great) I have changed the battery once, upgraded electrical connections for controller and battery and changed display supplied by Fido. Fiido remote support has been very good and adequate for somebody that is electrical bike maintenance experienced. Fiido were not interested to provide a solution to enable the DS2 and DS4 to conform to UK and EU pedelec law. Be warned the police are now fining heavily those ebikes that do not conform .

301km and I got a broken spoke on the rear wheel.......great

Where did you buy the luggage rack?

I bought this bike recently, very good bike BUT!!!! My rear wheel spokes breaking one by one each day I ride, I feel that I have wasted my money as I can’t ride the bike

Isn't it illegal to have a throttle on a uk bike

Price and speed

Do yeah get only 500 charges need new battrey

Maybe your rear brake is contaminated, degreasing might be the solution.

can baby seat be installed on this fiido?

260 km in 6 months is nothing, I have 1200km after 7 months 😄

Fiido *D4S (not DS4)

Customer services awful and making threats when I return this 'If you insist on returning the bike, please pack the bike in its original packaging to avoid damage in transit, we will inspect the bike for secondary damage upon receipt of the returned bike and we will issue you a refund if the bike is not damaged' I don't insist on returning this bike I only want fair recompense for the damage and the cost to fix it, it is unridable. I was 1st offered £16.90 now I'm being offered £45 a third of what it will cost to fix. Also implying they will not refund if the bike is damaged in transit is frankly disgraceful! There is no way I can re pack this bike the same way, I also have no control over what happens in transit or back at their factory. We all understand things go wrong but it's how they are dealt with that makes a difference. My advise pay for this bike by credit card as at least you'll have some recompense with them. Fido, your customer service needs to stop behaving like gangsters and manage their mistakes honourably and honestly. There is still time to redeem this but it's running out. To add insult to injury this is a replacement for one stolen, not a great way to treat repeat business.

240 KM for 6 months ! not much !!!!!!!

Fiido's pedal assist is the worst I've ever seen! It's not pedal assist actually, it just detects that you are pedaling (after quite some time actually because it's very slow) and it just gives full power!! no matter what assist gear/mode you 're on.. assist gears/modes only define different cut-off speeds for the motor so it stops when you reach that speed.. just awful!

Still worth it? Looking at getting one for a 12 mile daily commute. Can you unlock the power from 15.5mph.