SIXWHEEL 4 Speed Cog Set for Brompton Bicycle P/T Line

IXWEEL | High-Performance Colored Cassette for Brompton Folding Bicycles We are proud to introduce this brand-new cassette designed exclusively for Brompton folding bicycles. Developed and manufactured by SIXWEEL, a brand known for its high-performance road bike cassettes, this model features a refined tooth profile and structure perfected through multiple generations of development. Engineered to deliver smooth, precise, and quiet shifting performance while maintaining an ultra-lightweight design, this cassette is built for riders who demand both top-level performance and premium aesthetics for their Brompton. Starting weight from only 55g.