We changed both of the canti brake triangles on son no. 2's Columbus X-Wing cyclocross bike as both had snapped. It looks like multiple winters' use had corroded both. If the replacements don't work then we'll use Shimano's CX-50 brakes instead as I have a spare set.
The Giant FCR received a new silver quill stem, free from
@Kevberlin , and I swapped to better grips. This bike was supposed to be a quick clean up then sell, but it's stayed. They sometimes do this.
I'd hoped to swap the Tiagra crankset to an Ultegra one however a crank bolt just wouldn't come loose: there appears to have been no grease used when first built back in 2008. So, it'll stay until the bottom bracket needs replacing and I'll then do the lot.
One updated Giant FCR: