BBB PowerHead Headset Top Cap with Expander

BBB PowerHead Headset Top Cap with Expander (BAP-03)The BBB PowerHead BAP-03 is a robust expander designed for installation in a fork steerer tube. Its purpose is to enable the correct preload of the headset bearings, eliminating play between the fork, frame, stem and headset top cap. It is a small component, but it plays an important role in precise bicycle handling and riding safety.Unlike a traditional headset star nut, the expander is not driven into the walls of the steerer tube. Instead, it expands inside the fork, distributing the forces evenly over a larger surface area. This makes it suitable for both aluminium and carbon forks, in which a traditional star nut should not be used. The manufacturer highlights that the expander’s clamping mechanism distributes loads evenly and allows for safe and easy installation.The BAP-03 model is 40 mm long, providing a better grip inside the steerer tube. The larger contact area helps to seat the expander securely and improves the stiffness of the entire cockpit connection. In practice, this translates into more confident bicycle handling, especially when braking, riding off-road or placing greater loads on the handlebars.PowerHead fits the popular1 1/8-inch fork standard. It is suitable for road bikes, gravel bikes, MTB, trekking and city bikes, provided that the fork and headset are compatible with this size. It is a good choice when building a bicycle, replacing a fork or servicing the cockpit whenever a safe and durable component is needed for correct headset adjustment.Key featuresHeadset expander for 1 1/8-inch steerer tubes.Replaces a traditional headset star nut.Suitable for aluminium and carbon forks.The expanding mechanism distributes forces evenly inside the steerer tube.Safe and simple installation without driving the component into the fork.The long, 40 mm expander provides additional support surface.Helps correctly eliminate play in the headset.Improves the stiffness and confident handling of the cockpit.A good choice for road, gravel, MTB, trekking and city bikes.SpecificationManufacturer:BBB CyclingModel:PowerHeadModel number:BAP-03Product type:headset expander / steerer tube expansion plugFork standard:1 1/8 inchExpander length:40 mmCompatibility:aluminium and carbon forksMechanism:expanding mechanism that distributes forces evenlyWeight:58 g

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