A renowned Polish manufacturer's frame - BearEbike. Each BearEbike frame has a unique VIN number. All BearEbike frames are the only ones that meet all formal requirements and are approved for category L - two-wheeled vehicles. BearEbike, based in Warsaw, as the first and ONLY manufacturer of electric vehicles from Poland, fully complies with all ISO 3780:2009, ISO 3779:2009, and ISO 3779:2009 standards. It has received positive accreditation for assigning VIN numbers to its vehicles in accordance with the standards of the Polish Committee for Standardization and has been registered in the SAE International system under the initial code SX0 for category L vehicles.

The frame is the only one on the market to have undergone full accreditation and has been tested in terms of UN38.3 battery certification. Every independent constructor, after meeting all formal requirements, has the possibility of obtaining individual approval and liability insurance for their vehicle based on the BearEbike frame.

Unique features of the BearEbike frame:

• Completely made in Poland, manufactured by the BearEbike team
• Tapered and extended frame head for optimal turning radius
• Battery and controller housing made of aluminum, connected to the frame and swingarm made of cold-bent 2mm thick structural steel
• Built-in chain tensioning system eliminates the need for a derailleur hanger
• Expanded cage inside the frame
• Swingarm dedicated to the QS205 V3 and MXUS 3K Turbo motors and other motors with dimensions of 16x10mm
• Swingarm dropout - 165mm
• Controller housing dedicated to KT/GT/Kelly 7212S/7218S/7230S, ASI BAC 855/4000/8000 controllers
• Reinforced seat post mounting for a user weight of 130kg
• Swingarm geometry aimed at minimizing rear wheel kickback
• Frame and swingarm strength calculated using the MES method. As the only frame in Poland, it is dedicated to category L electric vehicles
• Frame painted in black RAL 9005 with a fine structure
• Comes complete with all screws and bearings
• Dedicated capacity for 18650 cells: 300 cells in one pack or 324 cells in two levels
• Dedicated capacity for 21700 cells: 228 cells in two levels
• Dedicated damper length of 220-250mm depending on user weight and height
• Internal width: 128mm
• Recommended damper length: 220mm - 251mm
• Full compatibility with shocks: 1 and 1/8", 1.5", tapered, and moto (e.g., Honda HM or CRM 125)
• Steerer tube length - 145mm
• Seatpost diameter: 27.2mm
• Seat tube length: 12cm including the yoke
• Bottom bracket insert: BB 68/73
• Bottom bracket length: 133mm-146mm
• Maximum rear moto tire width - 3.0" x 19" / 3.5x18"

The controller container has a cutout on the front for routing the rear brake cable.

The package includes:

• Battery compartment
• Seat post
• Controller housing
• Swingarm
• 2x small side plates
• 2x large side plates
• Wheel tensioning system
• Set of screws and bearings

The Russell vehicle frame is available in a universal size.

The frame has 6 suspension adjustment points for geometry and user height, as well as 2 seat post sizes to choose from. The dedicated user height range for the frame is from 163cm to 210cm.

When placing an order, please provide your height in the order comment, or contact our company to choose the correct seat post size. We provide assistance via phone and email. If your height is smaller or larger than the specified range, we recommend contacting our company before placing an order. Each frame is made to order directly at our company headquarters in Kobyłka near Warsaw (Poland, Europe).