In this week’s Patent Patrol, we check out an innovative chain retention device from Praxis Works. Rather than rely on special tooth shaping or other mechanical interfaces, the chainrings use magnets to discourage the chain from jumping off. We dive deeper, to find out if magnets could be part of your drivetrain’s future.

This isn’t the first non-traditional chainring from Praxis, who partnered with MRP for their Wave Tech tooth profiling, following a dispute with SRAM (who began cracking down to protect their narrow-wide chainring design). We just came across a Praxis patent for a new alternative – magnets.

[continued...]

View full post on bikerumor.com