T47a is an T47a is an open standard threaded bottom bracket shell design, utilizing the oversized interface of BB right, but with the benefit and peace of mind of a threaded interface.
Unleash a powerful 1700 lumens with the AMPP1700 headlight's Ultra-boost Mode. Its wide beam, enhanced by OptiCube™ lens technology, provides excellent side visibility and a double click activates the new Ultra-boost mode to illuminate Your Ride.
