Cyrusher XF900 Electric Bike Review 7

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Following on from my review of the excellent Engwe Engine Pro last month. I have recently been riding the Cyrusher XF900. This is a full-suspension fat tire bike that is equipped with a 750W Bafang motor and comes with a rear pannier rack and mudguards.

Like most of my eBike reviews, Cyrusher is a Chinese brand. However, they have a UK website with a showroom based in Gloucester and a fulfilment centre in Manchester and UK-based support numbers. My review sample was shipped with a UK power adaptor, and the bikes have been adapted to conform to UK laws.

UK Models sold as 250W

Unlike the Engwe, this bike is sold to comply with UK laws allowing you to ride the bike on the road without requiring you to register with the DVLA or limit yourself to private property.

However, the motor is identical to the international variants. It is just restricted using a cable which can be disconnected within the bike frame. The bike also comes without the throttle attached, but Cyrusher has included one in the box.

If you choose to derestrict, you should either ride the bike on private roads or register it with the DVLA as a light moped (L1e-B).

Specification

  • Motor: 250W Bafang (continuous) / 1200W Peak
  • Max Load: 330 lbs (150 kg)
  • Battery: 48 volt 17 amp-hour
  • Range: 50~62 miles (80~100 km)
  • Battery Charge Time: 5~7 hours
  • Battery Lifetime: 800 charges
  • Charger Standard: 110V~240V AC, 54.6V 2Ah Smart Charger (included)
  • Frame: 6061 Aluminium full suspension frame
  • Tires: Kenda/Chaoyang 26″ x 4″ puncture-resistant fat tires
  • Rear Derailleur: Shimano Tourney PD-TY300, 7/8 speed
  • Rear Suspension: Spring suspension 165×750 lbs 3 mags
  • Front Suspension: Suspension fork with lockout and adjustment
  • Bike Weight: 66 lbs (30 kg) / 74 lbs (34 kg) with battery
  • Rider Height: 5’7″ ~ 6’6″ (170cm ~ 200cm)
  • Included: Battery, charger, air pump, assembly toolset, assembly guide, battery manual, user manual, free stickers
  • Warranty: 2 Year

Assembly & Build Quality

Building the bike was quite easy, certainly easier than the Engwe Engine Pro. Most of the bike is assembled; you just need to rotate the front fork and add the handlebar, front wheel and front mudguard.

The hardest part is the thick cable ties they have used can be difficult to remove.

Derestricting the motor & installing the throttle

Most people will likely want to remove the limits on this bike, allowing them to ride the bike on private land at full speed.

This is an easy process to do.

For the throttle, you just need to attach it to the handlebar and plug it into the cable that has been covered up. However, this does require you to remove the handlebar grip and loosen other parts to make room for the throttle.

Then, the motor is limited by a cable is contained within the frame with all the other electronics. It is easy enough to access, you need to remove the battery and unscrew the part where it mounts, which exposes the electronics underneath. There is then a black and white cable you can disconnect.

Finally, the bike computer is set to a maximum speed, so you will need to power on the bike, and then press up and down. Then go to the setting P08 and set the speed to whatever you want. Setting it to 100 will remove all limits.

Cyrusher XF900 remove restrction

If you plan to use the bike on the road occasionally without a licence, I’d recommend using the bike computer to limit the speed again. I don’t think this would be technically legal, but I doubt it would be too much of an issue.

In Use: Range and hills

I thought the Engwe Engine Pro was big and heavy, but this is even more unwieldy when it comes to getting it in and out of my house.

It weighs 34kg, which is heavy, but it is not the sort of weight I can’t lift. However, a lot of the weight is on the rear, and it is just awkward to handle when you are trying to lift it in and out of things.

Furthermore, it is massive, and because it is not foldable, I don’t think there are many cars that could fit this in a boot. So, you will need a bike rack that is capable of carrying this.

The bike has a wide range of adjustments, they state it can accommodate people up to 6ft 6 inches or 200cm. I am 6ft 1 inch or 185cm, and I was easily able to find a comfortable riding position.

Unlike the foldable bikes I have reviewed, this has a bit more of a forward-leaning riding position, which is preferable for me as it makes pedalling easier, but may not be ideal for anyone with back issues.

Cyrusher XF900 Electric Bike Review 15

With the bike in its default speed-limited mode, it rides well on roads. The combination of full suspension and fat tyres gives you a very smooth ride feel. It does feel a bit underwhelming with the bike only going up to 15.5mph, you can tell it wants to do more.

The full suspension worked well where I live. I took it on some very light trails and cycled over a few curbs. However, I am not as confident with it if you plan to make more serious trials. The rear suspension is rear spring rather than hydraulic.

I have noticed that some people have stated this has 21 gears, with 7×3 Shimano Tourney gearing. My sample was only 7-speed, with no front gears, and it seems that Cyrusher doesn’t sell the 21-speed in the UK.

As you might expect, this bike feels like it handles hills better than normal 250W bikes. I took this up a very steep hill on the promenade, and there was only a small drop in speed when I approached the top, and there was very little peddling effort required from me.

Cyrusher XF900 Electric Bike Review 16

With the speed limits removed, this is much more fun to ride. This is the first time I have used a bike with a proper throttle, and it works as expected. With the power assist at level 5, it will quite aggressively accelerate and go all the way up to 28mph.

The battery range is OK. I rode this using quite high assist levels, so the range I achieved was a bit lower than the advertised ranges. Using the throttle extensively will result in a much shorter range.

Price and Alternative Options

The Cyrusher XF900 is currently available for £2,299.

There are not a lot of 750W / 28MPH bikes available to buy for UK buyers.

Engwe has a range of options, but these are all foldable bikes. If it is strictly for commuting, then the Engwe Engine Pro was an excellent bike.

I found the VITUVIA 750W Fat Wheel Bike for £2000, but it has a shorter range and lacks mudguards and a luggage rack.

Overall

The Cyrusher XF900 is an excellent bike that is fun and comfortable to ride.

As I come from a more fitness-orientated background, one criticism I have about this bike is who is it actually aimed at? You have a full suspension, none foldable bike that looks like it is a mountain bike. But, it weighs 34kg and then has pannier racks as if it is geared up for commuting.

For light trails, this is a very enjoyable bike to ride, and it is fun to be able to go much faster than you would on 250W powered bikes.

I’d happily use this for my commute, and the overall size of the bike gives you a bit more confidence in traffic, but the size and weight of the bike are not ideal for storage.

Cyrusher XF900 Electric Bike Review Rating

Summary

The Cyrusher XF900 is an excellent bike that is fun and comfortable to ride. It works well on light trails and is very fun to ride on private property with the limits removed. It should also work well for a commuter bike as long as you have the space to store it.

Overall
80%
80%
  • Overall - 80%
    80%

Pros

  • Comes restricted to 250W, making it legal to ride on the road, or can be unrestricted for private property

Cons

  • The overall size and weight make it a bit difficult to transport and storage

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