BERNDS Test report

The result of the ADFC folding bike test was:

“The Gretel folding bike is the ideal companion for people who find standard bikes unwieldy and difficult to control.”

Adobe_PDF_Logo

Technical specifications

Steel frame made in our own factory*

Dimensions when folded (all models): 95x74.5x20cm (with forks removed 75x74.5x20cm)
Wheelbase: 100cm
Rear sub-frame length: 40cm
Overall length: 150cm
Payload: 140kg
Step-through height: 27cm
Top tube length: 56cm
Weight: from 10,5kg and upwards
Rider height: from 140cm up to 210cm

*Standard dimensions with 50-mm width tyres, made-to-measure bikes deviate from these

Models of drive train

8-gear derailleur:
development 2.45-7.13m (48 tooth to 11-32), chain drive with freewheel

8-gear hub:
development 2.41-7.39m (42 tooth to 15), Shimano Nexus with back-pedal or freewheel (Premium hub); optional belt drive

3x8-gear Dual Drive:
development 1.57-8.48m (42 tooth to 11-32) Sram DualDrive, 8-gear combined 3-gear hub

14-gear hub:  
development 1.68-8.85m (48 tooth to 13), Rohloff SpeedHub; optional belt drive

The BERNDS-Gretel is available with a variety of special equipment.

The BERNDS-Gretel – simple and compact!

For all those who do indeed like a compact and easy-to-ride bike but who do not place great importance on the size when folded, we have built the Gretel.

Großansicht Gretel
Please click on the picture to see an enlarged version

The BERNDS-Gretel, too, possesses all the characteristics of the BERNDS family: the robust, easy-running 20" wheels, the sprung folding swingarm and the solid torsional stiffened, single-tube frame.

In favour of the extra-deep step-through we have forgone the design of a pure folding bike. All the same, the BERNDS-Gretel can still be carried in the car without the need for a bike rack.

 

Basic model

Powder coating: 3 coats (primer, powder colour coating, clear lacquer), standard colour Diamond Black, other RAL colours at extra charge
Suspension: rear wheel elastomer suspension (3 degrees of hardness available)
Front wheel suspension forks optional
Bearings: rear swingarm with self-lubricating, sintered brass bushing
Pedals: high-quality ball-bearing type with non-slip rubber surface
Brakes: V Brake (optional hydraulic wheel rim or disc brakes)
Tyres: 20" Schwalbe Big Apple 50 mm wide, 2-5 bar (others optional)
Wheel rims: aluminium U-profile, 24 mm 36-hole
Spokes: 36 Nirosta, 2 mm
Steerer race: 1 1/8 inch sealed (BERNDS special)
Stem: adjustable angle, 1 1/8 inch, different lengths optional
Handlebars: Moon (other handlebars optional)
Seatpost: patented, aluminium 29.8 mm
Saddle: Terry Citta (other saddles optional)
Mudguards: plastic black or silver, 53 mm SKS Trekking with
BERNDS special stainless steel stays
Foot stands: Hebie 661 (mounting using BERNDS special boss)