I don't think it's a proper bike shop if they're not prepared at least to lend a pump and a spanner to people in need. Brixton Cycles always has at least one person tinkering outside, and Chamberlains (Kentish Town) lent me a spanner which saved me a 10 minute walk with a bike on my shoulder. I don't tend to go to chain shops too often (I once met Mr Evans and he gloated about how much the 7/7 bombings boosted his profits) but I've found Cycle Surgery up in Camden very helpful. They tapped on my crown race for free and also gave me a bunch of bits from their workshop for free because they didn't sell them as stock.
I don't think it's a proper bike shop if they're not prepared at least to lend a pump and a spanner to people in need. Brixton Cycles always has at least one person tinkering outside, and Chamberlains (Kentish Town) lent me a spanner which saved me a 10 minute walk with a bike on my shoulder. I don't tend to go to chain shops too often (I once met Mr Evans and he gloated about how much the 7/7 bombings boosted his profits) but I've found Cycle Surgery up in Camden very helpful. They tapped on my crown race for free and also gave me a bunch of bits from their workshop for free because they didn't sell them as stock.