the tread on the GP4000S seems to act as a trip
You keep saying this, do you have a source?
do you have a source?
Not off the top of my head, and I'm not about to embark on a lengthy quest on my phone, but that new Swiss wheel company (Swissside?) or maybe Flo tested different tyres and one or both found the 4000s had good aeros IIRC.
@gbj_tester started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
You keep saying this, do you have a source?