ethirteen ISCG05 Adapter

ethirteen ISCG05 Adapter Info

e*thirteen ISCG05 Adapter is a practical solution for riders who want to run an ISCG-mounted chainguide on frames that use a traditional threaded bottom bracket. Designed to bridge the gap between modern guide standards and classic BSA frames, this adapter makes it possible to add reliable chain control where frame tabs aren’t present.

The adapter installs cleanly by replacing one 2.5mm bottom bracket spacer and is secured in place by the drive-side bottom bracket cup. Once installed, it provides a stable ISCG05 mounting interface for compatible single-ring chainguides, keeping alignment precise and secure without permanent frame modification.

Purpose-built for threaded BB setups, the e*thirteen ISCG05 Adapter is not intended for press-fit bottom brackets, dual guide systems, or frames that already feature ISCG or ISCG05 tabs. When used as designed, it offers a simple, effective way to expand drivetrain compatibility on frames that otherwise wouldn’t support an ISCG guide.

e*thirteen ISCG05 Adapter Specs at a Glance

• Function: Adds ISCG05 mounting to threaded BB frames.
• Compatibility: BSA threaded bottom brackets.
• Installation: Replaces one 2.5mm BB spacer; retained by drive-side BB cup.
• Guide Use: Single chainguide setups only.
• Not Compatible: Press-fit BBs, dual guides, frames with existing ISCG/ISCG05 tabs.
• Included: ISCG adapter plate.

Design Benefits

1. Expanded Compatibility: Allows ISCG05 chainguides on traditional threaded frames.
2. Clean Installation: Integrates into the BB stack without frame modification.
3. Secure Mounting: Held firmly in place by the bottom bracket cup.

Final Take

The e*thirteen ISCG05 Adapter is a straightforward, well-engineered solution for adding modern chainguide compatibility to BSA-threaded frames. If your frame lacks ISCG tabs but you want dependable chain control, this adapter gets the job done cleanly and effectively.