Where in the UK can I get some Tektro brake pads P437?

[MBosh]

Ok, so is this a road bike or a mtb? I.e. caliper brakes or v brakes?

Giant Defy 4, 2015, it's road bike with v Brakes.

 

[lejogger]

I don’t think they’ll be v brakes on that bike.
my advice would just be to replace the blocks with some shoes And cartridge inserts that you can just slideout and in for future replacements.
There’s loads on Wiggle - no need to spend more than circa £10

 

[lejogger]

Something like this: https://www.wiggle.co.uk/shimano-br-6700-r55c3-cartridge-type-brake-shoe-set-pair

 

[Moodyman]

OP, here are some examples.

https://www.wiggle.co.uk/shimano-ultegra-6800-r55c4-brake-shoe-set

https://www.wiggle.co.uk/shimano-br-6700-r55c3-cartridge-type-brake-shoe-set-pair

https://www.wiggle.co.uk/clarks-road-caliper-brake-blocks-complete

 

[MBosh]

Sorry, I meant caliper brakes not V brakes. Thanks for the help all.