40T/56T Chainring w Cover BCD130 for Brompton (H&H) Precise CNC Machined Chainring with Cover 56T or 40T (BCD130) Brompton Schlumpf Drive Compatible (H&H) Features : 40T is ideal for Internal Gear hub 3 speed Brompton, smaller chain size equals more leisure ride style 3 Speed Hub Ratio : 64%, 100%, 157%50T = 32T; 50T; 79T (Standard)44T = 28T; 44T; 69T 40T = 26T; 40T; 63T Choose 56T if you are fit and need more speed than stock standard sizeIntegrated CNC machined with anodisation colour7075 Aero Spec Aluminum with T6 heat treatment, lightwight yet ultra strong and durableBlack, Silver, Titanium Standard ColoursMade in Taiwan 40T/56T Chainring w Cover BCD130 for Brompton (H&H) Precise CNC Machined Chainring with Cover 56T or 40T (BCD130) Brompton Schlumpf Drive Compatible (H&H) Features :
40T is ideal for Internal Gear hub 3 speed Brompton, smaller chain size equals more leisure ride style
3 Speed Hub Ratio : 64%, 100%, 157%
50T = 32T; 50T; 79T (Standard)
44T = 28T; 44T; 69T
40T = 26T; 40T; 63T
Choose 56T if you are fit and need more speed than stock standard size
Integrated CNC machined with anodisation colour
7075
Aero Spec Aluminum with T6 heat treatment, lightwight yet ultra strong and durable