BlackBearing Headset Upper ICB IS52/28.6
Description
IS52 internal cable Upper headset assembly.
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Stock Code:CKHS-I4-HSI4SStock Code:CKHS-I4-HSI4T
Chris King Inset i4 Silver 1.5"/49mm Frame suit 1-1/8" fork steerer GripLock
This Chris King® threadless headset features a bearing cap design called GripLock™. GripLock™ is a multi-piece bearing cap that utilizes a split ring that improves steerer tube interface.
InSet™ Model 4 with GripLock™ bearing cap is intended for 1 1-8” steerer dual crown forks, fits bikes from a number of manufacturers and is for long travel applications. As long as your bike doesn’t require an integrated headset this Inset™ headset will perform beautifully on your bike.
This Chris King® Inset™ headset is a low-stack threadless headset. Like other Chris King® headsets, it features user-serviceable stainless steel bearings. Chris King’s bearings are legendary because their design gives you years of trouble free performance with only routine maintenance.
It is absolutely essential that proper reaming and facing of your bike’s head tube be performed by a qualified mechanic during installation of this Inset™ headset. Also, please be aware that modifying a frame to make the Inset™ fit is not a proper method of installation. The proper installation of this headset is so important that you are encouraged to choose another headset if you are not able to have this Inset™ headset properly installed. We highly recommend that you carefully check your bike's specifications before ordering this headset and contact your bike manufacturer if necessary. Please note that we are unable to accept for return, exchange, or credit any headset that has been installed or has been attempted to be installed. This insures that all of our customers receive only pristine, brand new components. Thank you for your understanding. Once properly installed, this Chris King® Inset™ headset will give you years of world class performance.
A wealth of other information is available on the Chris King® website.
American made in USA (U.S.A.)
Specifications:
Warranty: 10 years
Steer tube OD: 1-1/8 inch
Upper head tube ID (tolerances): 49.61mm (+0, -.04)
Lower head tube ID (tolerances): 49.61mm (+0, -.04)
Upper cup minimum ream depth: 16mm
Lower cup minimum ream depth: 16mm
Fork crown seat OD: n/a
Maximum press fit: 0.075mm
Upper stack height (upper cup + bearing cap): 8.0mm
Lower stack height (lower cup + baseplate): 4.0mm
Stem cap screw torque: 15 in. lbs
Weight:120 grams$293.10 (RRP)$293.10 (RRP) -
Stock Code:CKHS-BHB1Stock Code:CKHS-BHB2Stock Code:CKHS-BHB3Stock Code:CKHS-BHR1Stock Code:CKHS-BHS3Stock Code:CKHS-BHM2Stock Code:CKHS-BHY1Stock Code:CKHS-BHBFStock Code:CKHS-BHP1Stock Code:CKHS-BHG2
The NoThreadSet is built to be precise and dependable and sets the standard for quality headset function delivering precision performance to numerous world champions, grand tour winners, and aspiring riders around the world.
Every Chris King headset is built with heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding.
- Fits 34mm headtube
- Engineered, manufactured and assembled in Portland, Oregon USA
- King Lifetime Warranty
- Patented GripLock retention design for exclusively reliable headset adjustment (1-1/8” only)
- Responsibly lightweightExpected Date:16 October 2025Expected Date:16 October 2025$339.00 (RRP)$339.00 (RRP)$339.00 (RRP)$339.00 (RRP)$339.00 (RRP)$339.00 (RRP)$339.00 (RRP)$390.00 (RRP)$339.00 (RRP)$339.00 (RRP) -
Stock Code:WTHSECEC44L-G1-L-BLK-BStock Code:WTHSECEC44L-G1-S-BLK-BStock Code:WTHSECEC44L-G2-L-BLK-BStock Code:WTCLECEC44L-G2-S-BLK-BStock Code:WTHSECEC49L-G2-L-BLK-BStock Code:WTHSECEC49L-G2-S-BLK-BStock Code:WTHSZSEC49L-G1-L-BLK-BStock Code:WTHSZSEC49L-G1-S-BLK-BStock Code:WTHSECZS56L-G2-L-BLK-BStock Code:WTHSECZS56L-G2-S-BLK-BStock Code:WTHSZSZS56L-G1-L-BLK-BStock Code:WTHSZSZS56L-G1-S-BLK-B
ZS44/28.6 UPPER - EC49/40 LOWER Headtube Length: LONG 115-140mm
Adjust the geometry of your bike by changing the head tube angle by 1º with the GeoShift Performance Angle Headset. It allows you to change the head tube angle by -1º to make for a slacker geometry for added stability on fast descents, or by +1º by using the opposite orientation of the headset to make for a steeper geometry for quicker steering with maximum front wheel traction.
The GeoShift Performance Angle Headset features a design in which the bearings sit at an angle that aligns with the steerer tube. This compares to angle headsets that have bearings that sit flat, which adds unneeded friction and stress on the bearings. The design with angled bearings also prevents the creaking that is common with angle headsets that feature a spherical design.
Wolf Tooth headsets are machined in the USA with lightweight, strong, durable 6061 aluminum. Our Performance Headset is built to include an Enduro black oxide coated chromium steel bearing, a one-year warranty, and three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset.
Compatibility:
- Upper headsets ship with a star nut which can only be used on forks with steel or aluminum steerer tubes. For forks with carbon steerer tubes you will need a compression plug (sold separately; never use a star nut on a carbon steerer tube)$231.00 (RRP)$231.00 (RRP)$231.00 (RRP)$194.67 (RRP)$231.00 (RRP)$231.00 (RRP)$231.00 (RRP)$231.00 (RRP)$231.00 (RRP)$231.00 (RRP)$231.00 (RRP)$231.00 (RRP) -
Stock Code:WTHSEC34L-30-BLKStock Code:WTHSEC34L-30-BLUStock Code:WTHSEC34L-30-GLDStock Code:WTHSEC34L-30-GRNStock Code:WTHSEC34L-30-ORGStock Code:WTHSEC34L-30-REDStock Code:WTHSEC34L-30-SILStock Code:WTHSEC34L-30-RSILStock Code:WTHSEC34L-30-PRUStock Code:WTHSEC44L-40-BLKStock Code:WTHSEC44L-40-BLUStock Code:WTHSEC44L-40-GLDStock Code:WTHSEC44L-40-ORGStock Code:WTHSEC44L-40-REDStock Code:WTHSEC44L-40-SILStock Code:WTHSEC44L-40-RSILStock Code:WTHSEC44L-40-PRUStock Code:WTHSEC49L-40-BLKStock Code:WTHSEC49L-40-BLUStock Code:WTHSEC49L-40-GLDStock Code:WTHSEC49L-40-ORGStock Code:WTHSEC49L-40-REDStock Code:WTHSEC49L-40-BLK-P10Stock Code:WTHSIS52L-40Stock Code:WTHSZS56L-40-BLKStock Code:WTHSZS56L-40-BLUStock Code:WTHSZS56L-40-GLDStock Code:WTHSZS56L-40-GRNStock Code:WTHSZS56L-40-ORGStock Code:WTHSZS56L-40-REDStock Code:WTHSZS56L-40-RSILStock Code:WTHSZS56L-40-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.
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:30 October 2025$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$90.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (RRP)$120.00 (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 cup$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)
