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The minute I built the bike, I put the head angle in the slackest position and left it there…65-degrees. There are 66 and 67 degree options as well with the swap or twist of the sleeve. I’d never ridden a frame with adjustable head angle and wondered if there would be play or loosening. I never experienced that with the F5. The iPhone angle finder app actually said the head angle was 64.5-degrees on my set up. The MSC F5 uses a ’semi-integrated’ headset design. I’d never heard of this, but quickly learned about it as I was building the bike up. I had looked at the headset sleeves and just thought, ‘they look bigger than 1 1/8-inch so they must be 1.5-inch.’ Bad assumption on my part which caused me to wait 2 days for a the FSA version of this headset to arrive. It worked flawless, once installed, however, so a little homework on my part would have saved me some time in building.
Credit
gordo
