Hella Durable Stainless Steel Headset Bearings For Bikes 1.5 Inch 36 By 36 Degree Angular Contact Cups 40Mm Inner 51Mm Outer 6.5Mm Thick Slick Spin Tight Fit Replacement Parts For Fresh Builds And Classic Restorations

Premium Stainless Angular Contact Headset Bearing Unit
✔️ 40mm I.D. 51mm O.D. 6.5mm thick 36-degree bearing seal

This ABI stainless angular contact bearing serves as a direct headset upgrade for your bicycle frame. You pop this single unit into the top tube to fix loose steering play on gravel rigs or hardtail setups. The sealed design blocks road grime while keeping fork rotation snappy.

✅ 40 millimeter inner diameter matches standard headtube widths
✅ 51 millimeter outer diameter seats flush against lower race cups
✅ Six point five millimeter height preserves correct steering geometry
✅ Pre-installed seals protect internal components from wet trail dust

💡 What is a sealed angular contact bearing used for on bicycles?
This handy replacement part takes heavy forward pressure while keeping your front wheel tracking straight on rough terrain.
* Standard dimensions slide right into older aluminum frames for quick repairs
* Low friction machining cuts down on maintenance between weekend trail runs
* Tough stainless composition holds up to muddy conditions and steep descents

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