Light replacement bearings for FSA Orbit c-33 44E?
Posted: Tue Aug 15, 2017 10:22 pm
hello everyone,
i am working on shaving some weight off a new build, and i would like to replace the headset bearings and conical spacer. the stock headset is the FSA Orbit C-33 44 E ( tapered 1 1/8 to 1 1/4, 45 degree angle). here are the specs (not the exact one, but it is the cyclocross variant that has the same measurements, just different conical headset spacer) :
http://shop.fullspeedahead.com/en/files ... 45d46a829/
can anyone point me in the right direction for a light set of bearings to replace it? i am having a hard time figuring out what exactly i need to replace it with based on the FSA exploded diagram...
upper needs dimensions of 41.8 (outer) X 30.5 (inner) x 8 (height) ?
lower needs 46.8 (outer) X 34 (inner) X 7 (height) ?
what does this translate to in headset speak? is the upper IS42? and the lower IS47?
i was poking around and found a Pro Headset SL that would work for the top, i think (http://www.starbike.com/fr/pro-upper-headset-sl/), but the SL bottom does not have the right size, unless i have completely misunderstood things (http://www.starbike.com/fr/pro-lower-headset-sl/). the SL bottom only comes in IS42, IS 52 and ZS52...
in any case, the Pro SL was just one i stumbled across. does anyone have any suggestions?
thanks!
o
i am working on shaving some weight off a new build, and i would like to replace the headset bearings and conical spacer. the stock headset is the FSA Orbit C-33 44 E ( tapered 1 1/8 to 1 1/4, 45 degree angle). here are the specs (not the exact one, but it is the cyclocross variant that has the same measurements, just different conical headset spacer) :
http://shop.fullspeedahead.com/en/files ... 45d46a829/
can anyone point me in the right direction for a light set of bearings to replace it? i am having a hard time figuring out what exactly i need to replace it with based on the FSA exploded diagram...
upper needs dimensions of 41.8 (outer) X 30.5 (inner) x 8 (height) ?
lower needs 46.8 (outer) X 34 (inner) X 7 (height) ?
what does this translate to in headset speak? is the upper IS42? and the lower IS47?
i was poking around and found a Pro Headset SL that would work for the top, i think (http://www.starbike.com/fr/pro-upper-headset-sl/), but the SL bottom does not have the right size, unless i have completely misunderstood things (http://www.starbike.com/fr/pro-lower-headset-sl/). the SL bottom only comes in IS42, IS 52 and ZS52...
in any case, the Pro SL was just one i stumbled across. does anyone have any suggestions?
thanks!
o