IS42/IS52 Drop In 1 1/8"-1.5" Headset (46 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 outer head tube Ø top: 46 mm
Assembly height: approx. 10.3 / 17.5 mm
Aluminium cover cap optionally with 8.3 or 15.5 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 cover cap WITHOUT cone

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

Replaces prod. code 1713004

among others fitted in the following Rose frames:
Rose Xeon Team GF 2014-2016
Rose Pro SL 2011-2017
Rose Xeon CW 2015
Rose Xeon DX 2013-2016
Rose X-Lite CW/CWX 2016-2017
Rose Xeon CWX 2017
Rose Xeon RS 2012-2017
Rose Pro WRS 2011-2012
Rose Pro WSL 2013-2014
Rose Carbon Pro RS 2011-2013
Rose Pro RS 2011-2013
Rose Pro 2012
Rose Pro DX Cross 2012-2017
Rose Cross Pro RS 2014-2017
Rose Team DX Cross 2016-2017