I think I've got some 105 calipers in the workshop, defo GRX, although not London based so would still need posting. Shimano fluid is basically impossible to find still I think, you'll have to make do with something else.
Whereabouts are you? I’m in Ipswich
@snottyotter started
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I think I've got some 105 calipers in the workshop, defo GRX, although not London based so would still need posting. Shimano fluid is basically impossible to find still I think, you'll have to make do with something else.