I ride 29 & 27.5+ but heads up for you guys on 27.5...
Don't be stupid... Buy a couple... I stocked up with like 7 when they had this deal for 29" and came in very handy for backups and barter deals. $20 is super cheap for these amazing tires
Schwalbe Hans Dampf 27.5" Tire, No PCKG > Components > Tires | Jenson USA