bgm says:
"Reinforced retaining ring from BGM Pro with increased material thickness and greater pretensioning force.
This has bores so that it can be easily inserted with circlip pliers. The BGM Pro retaining rings are an ideal addition to all clutch baskets, especially if they are equipped with strong springs.
All BGM Superstrong couplings from 2017 onwards contain this ring type in series. "
Product safety information
Manufacturer information:
Scooter Center GmbH
Kurt-Schumacher-Str. 1
50129 Bergheim-Glessen
Deutschland
info@scooter-center.com
https://www.scooter-center.de