Enduro HS Bearing 1.5" 40 x 51.8 x 6.5 45x45° SSM Variant:Enduro Headset Bearing 1.5" Stainless ACB 4545 150 SSM 40 x 51.8 x 7 mm 45x45deg (HSS011, BAA0695K, TH-070, MR-128, MH-P16) Equipped with high efficiency lens

Equipped with high efficiency lens to provide a smooth transition from the spot beam to the flood beam

WEIGHT 331g per pair

instead of following a tortuous path

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it can relay data from an ANT+ band to a Bluetooth software or device

Enduro HS Bearing 1.5" 40 x 51.8 x 6.5 45x45° SSM Variant:Enduro Headset Bearing 1.5" Stainless ACB 4545 150 SSM 40 x 51.8 x 7 mm 45x45deg (HSS011, BAA0695K, TH-070, MR-128, MH-P16) Equipped with high efficiency lensACB 4545 150 SSM 1 1 2 440C stainless steel Angular Contact Headset bearing (40mm x 51. 8mm x 7mm: 45x45 deg) Angular contact headset bearing featuring 440C stainless steel balls and races for superior corrosion protection. This size bearing overlaps the size of the ACB 4545 150 very closely, but features a slightly smaller (51. 8mm) OD to accommodate tighter lower bearing seats found in some framesets. This size bearing is also known in the bike