AXA Bosch 2 Downtube Battery Lock & Removeable Key brand_Knog flexibility is good as it

flexibility is good as it allows the cage (and therefore lower pulley) align better with the angle of the chain when using the higher gears of the cassette

Most oversized pulley cage systems use very small bearings

recommended for Deore and Tiagra drivetrains

Diagnostic interface (type: USB-C) for diagnostics or as an alternative charging option for the integrated battery of the System Controller (not for charging the phone)

AXA Bosch 2 Downtube Battery Lock & Removeable Key brand_Knog flexibility is good as itAXA Bosch 2 Downtube Battery Lock & Removeable Key When it comes to theft protection of your bike, do not rely solely on your frame lock. Your components need protection, too. Features: AXA Defender locks with removable key combined with the AXA lock for a Bosch downtube or rack battery These sets use two AXA keys, used for both locks Replacement keys are available via AXA: https: keyservice. axasecurity. com en GB With removable key