Stealth LaMASSU Mid Drive

£999.99 £1,299.99


  • LITHIUM BATTERY & HIGH SPEED MOTOR---This bike with a stable 250W Mid Drive Electric Bike Motor providing 5 levels of assistance to 20MPH max.Mid Drive Motor has better riding experience than rear-drive Motor, better handling and easy maintenance and other characteristics. Fully enclosed waterproof and dustproof IP5.And the 36V/11.6Ah Lithium-Ion removable battery, It can travel 30 ~ 50 miles in electric assist mode(PAS mode). Plenty for a day’s adventure or most trips to travel and back.
  • HIGH-QUALITY MATERIAL & DESIGN---Alluminum alloy frame makes the bike light weight yet very sturdy. These metals can take heavy weights as well as rough terrain. thus making this an apt mountain bike.The SR SUNTOUR XCT Suspension front fork is sturdy and reliable.And has a strong shock absorption effect.It make for a great ride experience on mountain roads, highways, and forestways.
  • EXCEPTIONAL MECHANICAL COMPONENTS---SHIMANO M310 ALTUS 8-speed transmission system, uphill and downhill, slow, constant speed, speed up, all can be satisfied. Full-aluminum crank, making the overall transmission system smooth.Double Shimano MT200 hydraulic disc brakes give you a more reliable riding experience.Hydraulic disc brakes are easier to maintain and clean.And it has an efficient and reliable braking effect
  • WORKING MODES---Assisted bicycle & Normal bike. you can choose 5 power assist level according to your needs. You can add a burst of speed with the throttle, which is ideal for pulling away from traffic lights. Combining five modes would be a better choice.
  • CONVINENCE&COMFORTABLE--- 85% pre-assembled. It's not difficult to finish assembly by yourself.Quick detachable battery design - you can easily remove/install the battery, just turn the key. The 18-inch frame is suitable for a person 5'7"- 6' tall.The 16-inch frame is suitable for a person 5'- 5'8 tall.




  • Battery capacity: 36V 11.6Ah Lithium Battery
  • Charging time: 3 hours
  • Range of mileage: 35-45km(electric only), 50-80km(pedal assistant) 
  • 250W 36V Center Motor
  • Intelligent pedal assistant system
  • On board computer: Show speed, battery status, mileage etc.
  • Battery weight 4kg
  • Battery Cells:18650
  • Super Display with key.
  • Full Electric throttle
  • 48V 2A Smart Charger


  • 3 Different power modes: ManPower Mode / Assist Mode / Electric Mode
  • Shimano Altus gearing system
  • Rear 8-Speed
  • Chain Wheel: 14*32H
  • Shifter: Shimano 8 Speed
  • Rear: Shimano RD 8-Speed
  • Front: Single Speed 14*32H


  • Rim: Alloy Double Wall 32H
  • Tire specifications: CST 27.5 inch


  • Frame material: Aluminum Alloy
  • Suitable for Adults Size: 168cm - 200cm
  • Front fork material: Aluminum alloy
  • Saddle: Comfortable mtb saddle 
  • ProMax Handle bars
  • XCT Front fork damping type: spring shock absorption


  • Brake Disk: Tektro Disc Brake
  • Brake system: Shimano Hydraulic disc brake


  • Suitable for adults between the size of 168cm - 200cm
  • Net Weight: 23kg
  • Gross Weight: 25kg
  • Load Capacity: 120kg
  • 1 Year Warranty - Servicing can be done at your local bike shop. 

How the bike is delivered:

You will need to attach the handle bars and front wheel and plug in and play.

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our BSS qualified mechanics and then securely packaged, ready for delivery.



How can I track my order?

If you have recently placed an order with us and want to track its click here.

How long will it take for my order to arrive?

It depends on where you are. Orders processed here will take 5 - 10 business days to arrive. Overseas deliveries can take anywhere from 10 - 15 days. Delivery details will be provided in your confirmation email.

The item I want is out of stock / unavailable, can I pre-order?

Unfortunately, at this time we cannot accept pre-orders for items that are not currently available.

Pre-orders cannot be taken via the website or through our customer services team. For some of our most popular lines where we are expecting more stock to arrive soon you will see an option on the product page to register your interest to be emailed when more stock arrives.

If you need help finding a suitable alternative product please email us to chat to one of our experienced advisors.

Where is my local store? / Where can I find my local store?

We currently are only online however in the near future we will have local stores.

I want to cancel/amend my order

I need to change the address on my order

Please email us using the contact box referring your order number and the address you wish to change it to.

Cancelling an order for delivery

It may be possible to cancel an order after it has been placed. however if there is a tracking number supplied we cannot cancel the order until it has been received. 

Do you offer finance at Bike Safety Solution?

No we don't at the moment, however we offer Klarna buy now pay later OR buy now pay in installments.

How do I return my order?

The easiest way to return an item which has been delivered, is to email us requesting a return we will supply the the return address and deal with the returns via exchange or refund.

Our Guarantees
14 days DOA product guarantee
If one or more of the items you received are damaged, different or not working, you will be protected by this guarantee.

What we will need from you.
1. The Order number and item number;
2. A photo or video showing the issue;
3. A photo of the shipping label and original packaging;
We will review your claim and contact you if we need more information; If approved, we will arrange a replacement part or a Partial refund of the defective product. We will pay for the defective part through a replacement part or a partial refund of the defective product. If you are very dissatisfied with this product, please do not hesitate to contact us, our customer team will provide you with a complete solution.

Where do I send returns?
For the item, if you need a return, please contact our customer team before. Bike Safety Solution will not be responsible for returned item(s) without notifying us in advance.

Do I need to return all its components or just the faulty part?
Unless agreed otherwise, you should return the item as well as its original packaging and all its accessories, like batteries, cables, chargers, and similar ones. If one component, accessory or spare part is missing, we will ask you to pay for it.

60 days conditional return
If you are not satisfied with your purchase and the product is still in brand new conditions, we can arrange a partial refund, which will cover the price of the item minus the shipping fees. You will be responsible for paying the return shipping fees.
If a product is damaged or not working, please refer to our 14 Days Product Guarantee or the warranty of its category. The return package should contain all the accessories of this product, which should still be in good condition.

For the item, if you need a return, please contact our customer team before 
If you find yourself in this situation, please do not hesitate to contact us to submit your claim.

Cancellation guarantee
For canceling an order or change an item which has not been processed, please contact us as soon as possible.
If the expected shipping date of your order has already passed and it has not been shipped, you can cancel the order and request a refund, which will automatically return to your payment account within 5 business day
Orders whose parcels have already been processed can not be canceled. If you are not satisfied with your purchase within 60 days after receiving it, you are protected by our "60 Days Return to Us" guarantee.
14 days DOA product guarantee
If one or more of the items you received are damaged, different or not working, you will be protected by this guarantee.

Customer Reviews

No reviews yet

Recently viewed

Customer Reviews

No reviews yet