BlackBearing Headset Upper IS52/28.6
Description
IS52 Upper Pivot headset assembly contains bearing 40x51.8x8mm 36/45
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The Tange-Seiki Passage 1" threaded headset is constructed of steel and features 5/32" ball bearings.$21.00 (RRP)Add To Cart
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Stock Code:WTHSEC34U-5MM-BLKStock Code:WTHSEC34U-5MM-BLUStock Code:WTHSEC34U-5MM-GLDStock Code:WTHSEC34U-5MM-GRNStock Code:WTHSEC34U-5MM-ORGStock Code:WTHSEC34U-5MM-REDStock Code:WTHSEC34U-5MM-RSILStock Code:WTHSEC34U-5MM-PRUStock Code:WTHSIS41U-5MM-BLKStock Code:WTHSIS41U-5MM-BLUStock Code:WTHSIS41U-5MM-GLDStock Code:WTHSIS41U-5MM-GRNStock Code:WTHSIS41U-5MM-ORGStock Code:WTHSIS41U-5MM-REDStock Code:WTHSIS41U-5MM-SILStock Code:WTHSIS41U-5MM-RSILStock Code:WTHSIS41U-5MM-PRUStock Code:WTHSIS41U-8MM-KNOCK-BLKStock Code:WTHS-IS42U-5MM-BLKStock Code:WTHS-IS42U-5MM-ORGStock Code:WTHS-IS42U-5MM-RSILStock Code:WTHSZS44U-5MM-BLKStock Code:WTHSZS44U-5MM-BLUStock Code:WTHSZS44U-5MM-GLDStock Code:WTHSZS44U-5MM-ORGStock Code:WTHSZS44U-5MM-REDStock Code:WTHSZS44U-5MM-RSILStock Code:WTHSZS44U-5MM-PRU
EC headsets are for frames with external bearing cups, which places the bearing outside of the frame with these headsets.
Premium Headsets with Enduro stainless steel bearings have a lifetime warranty.
Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our headsets have three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. They are designed to be lightweight, strong, and durable.
Compatibility
- Stack height designation for EC headsets includes 10mm cup
- Any frame that uses an external cup headset with a 34mm upper head tube inner diameter and 34mm
- Uppers and lowers sold separately.Expected Date:16 February 2026$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$140.00 (RRP)$130.00 (RRP)$130.00 (RRP)$130.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP)$140.00 (RRP) -
Stock Code:CKHS-CCM2Stock Code:CKHS-CCN1Stock Code:CKHS-CCR1Stock Code:CKHS-CCS1Stock Code:CKHS-CCT2Stock Code:CKHS-CCP1Stock Code:CKHS-4CCB1
We started making headsets in 1976 and have been refining them ever since. Our DropSet™ 4 is built to be precise and dependable and sets the standard for quality integrated headset function delivering precision performance that is built on the same pedigree of Chris King headsets from the past 40 years.
For more information see our DropSet™ 1 blog post here.
Engineered, manufactured and assembled in Portland, Oregon USA
King Lifetime Warranty
Legendary made-in-house bearings
Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517)
42mm 45x45 upper and lower bearing
Compatible with our included baseplate and 45 degree integrated crown races$289.00 (RRP)$289.00 (RRP)$289.00 (RRP)$289.00 (RRP)$289.00 (RRP)$289.00 (RRP)$289.00 (RRP) -
Stock Code:WTHSEC34L-30-BLK-BStock Code:WTHSEC34L-30-BLU-BStock Code:WTHSEC34L-30-GLD-BStock Code:WTHSEC34L-30-ORG-BStock Code:WTHSEC34L-30-RED-BStock Code:WTHSEC34L-30-PRU-LStock Code:WTHSEC44L-40-BLK-BStock Code:WTHSEC44L-40-BLU-BStock Code:WTHSEC44L-40-GLD-BStock Code:WTHSEC44L-40-RED-BStock Code:WTHSEC44L-40-PRU-BStock Code:WTHSEC49L-40-BLK-BStock Code:WTHSEC49L-40-GLD-BStock Code:WTHSIS52L-40-BStock Code:WTHSZS56L-40-BLK-BStock Code:WTHSZS56L-40-BLU-BStock Code:WTHSZS56L-40-ORG-BStock Code:WTHSZS56L-40-RED-BStock Code:WTHSZS56L-40-PRU-B
EC headsets are for frames with external bearing cups, which places the bearing outside of the frame with these headsets.
Performance Headsets with Enduro black oxide bearings have a one-year warranty.
Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our headsets have three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. They are designed to be lightweight, strong, and durable.
A crown race adapter (sold separately)will allow you to use forks with smaller 1-1/8" or 1-1/4" steerer tubes with a larger 1-1/2" bottom headset cupExpected Date:16 February 2026Expected Date:16 February 2026$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$70.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)$80.00 (RRP)
