The ultimate e-bike chainring spider for Bosch Gen 4 motors with 53 mm chainline (Boost). Super light and durable design. The spider is only compatible with absolutBLACK Super Steel chainrings. Spider comes with 5 titanium mounting bolts. Chainring sold separately.
These are groundbreaking chainrings for e-bikes. It is well known that normal OEM steel or aluminum chainrings last on average 3-6 months on an e-bike. Once worn out, there is a need to replace the chain and cassette due to excessive wear. The absoluteBLACK chainrings are about 5 times harder and reach a hardness of over 1300 HV. This means that they outlast the normal chainring by 5 to 10 times and save 2-4 cassette changes. due to several possible combinations of chainrings and spiders, the chainrings and spiders (incl. bolts) are offered separately.
HOW TO CHOOSE THE RIGHT E-BIKE CHAINRING ASSEMBLY:
choose your chainring spider (inner ring)
Depending on the mid-motor your e-bike uses, first choose the correct mounting interface (Shimano, Specialized, etc.) and then choose the correct offset (Boost 53/52.5mm or Non-Boost 50mm) if required. finally, choose the color of the spider and add it to the shopping cart.choose the tooth profile of the Super Steel chainring
choose between the 10/11/12 speed or Shimano 12-speed HG+ versions, depending on the chain used on your E-bike. choose the size of the Super Steel chainring
finally choose the size (number of teeth) of the chainring then the combination is complete
ECK DATA
Mass (+/-1g): | 35g |
Color | Black, Red, Gold, Titanium, |
Compatibility | All Bosch Gen 4 motors with 53mm chainline. Compatible only with absoluteBLACK Super Steel chainrings (proprietary bcd) |
Material | cnc machined 7075 Txxx Aluminum |
Finish | type II anodizing |
HOW TO ASSEMBLE THE SUPER STEEL CHAINRING WITH THE E-BIKE SPIDER
Please refer to the diagram below to assemble both parts correctly. The bolts should be tightened to 5-6 Nm using the Torx T-25 key.
Crank/chainring mount | DM 53mm (Boost) |
Range of use | E-bike |
Color group | black |
weight | 35 gr |
manufacturer | absoluteBLACK |
suitable brand | Bosch |
suitable model | Generation 4 electric motor |