IS42/IS52 Drop In 1 1/8"-1.5" Headset (48 mm)

Drop In headset for frames with tapered head tube and tapered steerer tube. The industrial bearings are simply placed in the head tube without the need to press in bearing cups.

Sealed cartridge bearings
For head tube Ø top: 48 mm
Assembly height: approx. 17 mm
Aluminium cover cap with 15 mm height
Weight: approx. 80 g

upper bearing (TH-MR121):
Outer Ø: 41.8 mm
Inner Ø: 30.5 mm
Bearing contact: 45° x 45°
Height: 8 mm

lower bearing (TH-MR222):
Outer Ø: 51.9 mm
Inner Ø: 40 mm
Bearing contact: 45° x 45°
Height: 8 mm

In the box:
Upper and lower bearing for tapered forks and 15 mm cover cap WITHOUT cone

Note: Newer carbon forks already have the cone seat embedded and do not need the lower cone!

Replaces prod. code 1712999

among others fitted in the following Rose frames:
Rose Xeon CW/Team 2013-2014
Rose Xeon X-Lite 2013-2014
Rose Xeon CRS 2013-2016
Rose Xeon CSL 2014
Rose Carbon Pro RS 2011
Rose Carbon Pro SL 2011-2012
Rose Xeon CDX Cross 2017