It entirely depends on the rim. First generation GP5000TLs were impossible to fit on some rims, difficult to fit on most rims and reasonable on a few. Second g

It entirely depends on the rim. First generation GP5000TLs were impossible to fit on some rims, difficult to fit on most rims and reasonable on a few. Second generation (I think late 2020/early 2021) are a slightly looser and will fit on more rims. I can't speak about the latest gen. released late last year. I personally love GP line of tires (used 4k/5k clincher and 5k TLs) as they have a good compromise of puncture protection, tread wear and rolling resistance. They generally rate at the top for just about any tire I'd use in a non-race scenario. I will not buy another pair though until I switch wheels as I have no desire to torture myself. I did not go as far as to bake the tires to loosen them, but I did let them sit out in the sun which made a bit of a difference. The other factor to consider is roadside repairs. If you have a really hard time mounting the tire initially and you puncture severely enough to need a tube (sealant leaked and plug won't hold), you're likely calling for a ride back. I did find they loosen after 500-750km so you are more likely to be able to fix it roadside if needed. I sliced the sidewall on my almost new GP5k but thankfully the plug held. Irresponsibly I used it for another 500km+ until it would no longer hold pressure overnight, but I do not recommend that route! As for using tire levers - buyer beware when it comes to carbon. I resorted to levers, but you do run a risk of permanently damaging your wheel. I have seen a picture of someone put one of the plastic with steel spine levers straight through their rim doing this. A tire bead jack is a far safer and far easier option (though I've yet to buy it).