Chris King DropSet 2 Integrated Headset IS42/52

Chris King DropSet 2 Headset Bearing - 42/52 mm tapered headset for a 1 1/8" tapered steerer.

CK started making headsets in 1976 and have been refining them ever since. The DropSet headsets series are built to be precise and dependable and set 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.

Designed for frames that have integrated bearing seats molded or machined directly into the head tube.

Why CK made this:

The simple answer is that many contemporary bicycle frame designs call for the headset bearings to ride inside the frame's headtube. After decades of making press-in bearing headsets, the industry needed to make headsets that worked in these newer frames. CK understood that integrated headsets posed a unique challenge in that the bearings are not pressed into a cup and sit loosely in the frame. When bearings are not pressed securely into a cup they shift and move, rapidly losing preload. As preload drops, the bearings are more susceptible to creaking, damage, and failure.

Why you want it:

Enter the patented GripLock™ bearing cap. The GripLock™ preloads the headset independently of clamping onto the steerer, so it retains preload far better than the competition and is impervious to the ill effects of load spikes from large hits and heavy braking. This means smoother steering, no more creaking, and a longer lasting headset.

The GripLock™ design also takes the guesswork out of preloading a headset, because the bearing preload force is independent of the clamping force. CK headsets can be preloaded to a torque spec.

Features:

• Headset type: Integrated (IS)
• Legendary made-in-house bearings
• Patented GripLock® retention design for dependable headset adjustment

Compatibility:

• S.H.I.S. IS42/28.6 Upper Bearing, IS52/40 Lower Bearing
• Upper bearing: 42 mm 45/45 deg., for 2.8 - 3.0 mm bearing ream depth
• Lower bearing: 52 mm 45/45 deg.
• For tapered 1 1/8" steerer
• Compatible with the included Chris King Base Plate and 45 deg. integrated Crown Races
• Compatible with Open, 3T, All City, Low, Cinelli, Lynskey, and more...

Note: For additional info about this product, please check the DropSet Manual.