One And One Eighth Inch Bicycle Internal Headset Bearing 30.15 By 39 By 6.5 mm 45 Degree Angular Contact 45 45 Chrome Steel GCR15 With Rubber Seals For Hybrid Mountain And Road Bikes

1-1/8 Inch Bicycle Internal Headset Bearing, 45/45 Sealed
✔️ Chrome steel GCR15, 30.15x39x6.5mm, 45/45 angular contact, 1pc

This 1-1/8" internal headset bearing is a compact, sealed angular-contact unit used in bicycle headsets to keep steering smooth and durable. It features a 45/45 contact angle, rubber seals for dirt protection, and a bore of 30.15mm (1.19 in) with a 39mm outer diameter (1.54 in) and 6.5mm width (0.26 in), designed for 1-1/8" headsets.

✅ Type: internal headset bearing with 45/45 angular contact
✅ Dimensions: bore 30.15mm (1.19 in), OD 39mm (1.54 in), width 6.5mm (0.26 in)
✅ Material and seals: chrome steel GCR15 with rubber seals for dirt protection
✅ Fitment and pack: 1 bearing for 1-1/8" headsets, ready to install

💡 What is an internal headset bearing and why is it a handy choice for bikes?

It's a compact, sealed bearing designed for bicycle headsets to keep steering smooth and accurate.

- Helps maintain precise steering with internal headset bearing and 45/45 angular contact - Sealed chrome steel construction guards against dirt and moisture for longevity - Designed for 1-1/8" headsets to support regular riding and quick maintenance