If you want SUPER niche, rare and costly but well made and good sell on value: PedalEd. It's a Japanese designer but funded by Brooks. You can find a few bits left in Present on Shoreditch High Street.
You also have Outlier. They do very smart looking bits that's more costly than Rapha in many cases. They make nice waxed caps but I was very disappointed but the fit of their white button up shirts in TFG.
Levis do some nice looking bits. I haven't tried any of their tops/jackets but not impressed by their jeans.
I do like Howies but I wouldn't say their Selvedge denim is specifically made for being the bike.
Pester Swerve to make their Cone mill selvedge again.
If you want SUPER niche, rare and costly but well made and good sell on value: PedalEd. It's a Japanese designer but funded by Brooks. You can find a few bits left in Present on Shoreditch High Street.
You also have Outlier. They do very smart looking bits that's more costly than Rapha in many cases. They make nice waxed caps but I was very disappointed but the fit of their white button up shirts in TFG.
Levis do some nice looking bits. I haven't tried any of their tops/jackets but not impressed by their jeans.
I do like Howies but I wouldn't say their Selvedge denim is specifically made for being the bike.
Pester Swerve to make their Cone mill selvedge again.
Good luck!