- High strength and lightweight design: The bicycle chain guide adapter is made from high-strength CNC-aluminium alloy, durable and light. It is heat-treated and anodized to resist wear and provide a long service life. - ISCG03/05 compatibility: Compatible with ISCG03/05 single-plate chain guides. Easy to install on bottom brackets with a 68/73 mm shell width, including threaded BBs such as ForBB50/BB51/BB70 (not compatible with integrated bottom brackets). - Precise installation: For proper fit, install the vertical connection of the adapter perpendicular to the horizontal plane. This ensures a secure seat and optimal performance. - Durable and reliable: Constructed from a high-strength aluminium alloy with a CNC finish, built to withstand demanding riding conditions. Delivers reliable chain guide operation while maintaining the bike’s light weight. - Use scenarios - Trail or enduro riding on a bike with an ISCG03/05 chain guide to improve chain retention on rough terrain. - Upgrading a bike with a 68/73 mm threaded BB shell (ForBB50/BB51/BB70) to support a single-ring ISCG guide. - All-mountain or cross-country setups where lightweight, durable chain guide support is desired.