5 Speed Cog Set 11-13-15-18-21
Matched 5 speed cog set 11-13-15-18-21
As you may know taking cogs from road cassettes and restaking them on Brompton can result in poor shifting. That is because the shifting ramps on those cogs were no longer aligned.
In this set, the shifting ramps on the cogs are matched, and the spacing is fine tuned. On some of thse cogs, the shifting ramps are also modified. The price of the cog set reflects such additional works.
11T - Re-machined for proper spacing.
13T - Re-machined for proper spacing
15T - Standard 11s cog
18T - Standard 11s cog
21T - Re-machined for smootehr shifting
Spacers: 2.15mm alloy 9 spline spacer x2 + 0.5mm steel spacer for adjustmnet.
Lockring: AL 7075 11T
Available in standard nickel silver or black chrome. Black chrome is more corrosion resistant than the common ED black.
Should you wish to have other combination, please contact us.