Busch & Muller Toplight Flat S Permanent Rear Light

Customer Reviews (2)
1 / 5| Write your review
£26.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Compact styling incorporating excellent light output with 220 degrees visibility thanks to the special lens system. Incorporating B&Ms revolutionary LineTec technology which allows road users behind you to better judge your distance as they approach you. The patented lens system creates a wide strip of light from one high output LED.

LineTec - Light strip for more safety

LineTec: Is a special lens system, the light of one high power LED is spread out to become a wide strip of homogenous light. Why is that important? In the past if one approaced a bicycle from behind at night, one could only see a single point of light emitting from the rear light and estimating the distance, the human eye requires a spatial relationship to any reference point in the dark. A rear light sending out a LineTec light strip emits spatial light allowing other road users to estimate the distance much better and quickly.

- Incorporating LineTec technology
- Can use standard or rechargeable batteries
- Very bright output with 220 degrees visibility
- Batteries only need to be changed if and when the green LED goes out
- Fits 50mm and 80mm racks
Product Reviews (2)
Questions & Answers (4) Q & A
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Product Reviews (2)
Overall Product Rating 1 / 5
By muse kidd
29 Aug 2022
1 / 5
I recommend this product
ConsNot waterproof
ProsLooks good and has wide light angle...
As the other reviewer said, this light is NOT waterproof. After several rides in the rain, the internal components began to corrode and then the light failed.
By John Sanders
16 Mar 2019
1 / 5
ConsNot waterproof , poor red reflector , poor quality and poor value
ProsWide angle of light
I have had previous models of B&M rack mounted rear light and have been very happy with them .
I purchased this model because it has a wide angle of light and it is very effective at this ,what is less good is that the clear lens over the light that provides the wide angle reduces the effectiveness red reflector built into the light .
The build quality is poor ,no gasket on the lens to make the unit waterproof , this does not matter because on the rear of the light there are no less then ten holes where water can get in !
The light is held together by a clip ,which is not as secure as the screw fitting on older models .
I can't see this light lasting very long ,Mine's taped up to try and make last .
very badly .
Questions & Answers (4)
how many light modes?
20 Mar 2018
Hi there,

This light has 2 modes, off and on.

Is This Part A Reflector As Well As A Light?
01 Mar 2017

This light does indeed have a reflector built into it as well.

Would This Fit A Tubus Fly Rear Rack, Whilst Carradice Rack Pack Carried Above?
10 Nov 2016
Tubus Fly has a two bolt (hole) mounting plate for lights

The two mounting holes on the Tubus Fly should be 50mm apart so as this light can fit to 50mm or 80mm rack spacing then this light should fit your rack without any issues.

What Size/Type Of Batteries Does This Light Use??
05 Aug 2016
Hi it takes 2 AA batteries.