|   Has a thin gap between headset cups and headtube...big deal? | weather
Dec 10, 2001 11:35 PM | | frame came back from lbs with headset installed, the cups were pressed in very firmly, but there're gaps between cups and headtube. the gap is thin, though, i guess about 0.2-0.4mm. is this going to be a big deal? or should i go to another shop and do it again? |
| oh yeah, the cups were indeed pressed in as much as possible... | weather
Dec 10, 2001 11:44 PM | | still there were these gaps. |
| Most............... | Mike T.®
Dec 11, 2001 4:58 AM | | .....headsets have a slight radius where the flange meets the bulge. All headtubes are square ended unless a smart installer knocks that edge off with a simple file. |
| Gaps between cups and headtube | Calvin Jones-Park Tool
Dec 11, 2001 5:22 AM | | As mentioned by Mr. T, there is often a radius or curved surface on the cup. This can give the impression of a gap where it meets the flat surface of the headtube. Use a light behind the headtube and inspect the gap again. If there is more cup that can be pressed, it is a problem. 0.4mm is a pretty big gap in this situation. Is the gap even all around the cup circumference, or only on one side?
There may have been other issues involved. If there was a burr inside the headtube, or poor machining with an improper headtube ID, a cup may not full press.
Click here for threaded-type headset service. |
| 0.4mm was my ove-estimate | weather
Dec 11, 2001 10:21 AM | | it wasn't that big a gap--it was barely wide enough to insert a razor blade--and it's very even around.
when i get the frame back i asked the mechanic about the gap and he tried to press it in further--but couldn't. |
| watch the headset for play for the first few rides.... | TC
Dec 11, 2001 7:53 AM | | if the cup has room to settle in a bit it'll do it on the first few rides. just take the proper allen wrenches along to tighten the headset if needed. that's just my experience and opinion. |
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