AbsoluteBlack’s new Hollowcage is a one-sided oversized pulley system
Unique looks, big claims and a price tag larger than the lower pulley wheel.
drivetrain friction
The $1,000 oversized pulley cage and its creator’s road to redemption
The unique design might well offer reduced friction, but it’s mostly just mega-cool and ridiculously rigid.
Submersion drivetrain waxing: no chain removal required
Not keen on chain waxing? This new method may be for you.
Spotlight: SLF Motion Evo Speed System oversized rear derailleur pulley cage
Friction-cutting oversized pulleys, ceramic bearings, and real carbon fiber construction.
Do clutch rear derailleurs add drivetrain friction?
Check out James Huang's author page.
CyclingTips podcast, Episode 23: Watts up with mechanical friction and chain lube?
Check out James Huang's author page.