45NrthConcave Studs Pack of 100(Return to Product Page)

Really amazing. I ride every day 365/ work/ home/ exercise ext... i fell twice last year real hard at 5 am on black ice to work. So this year bought 45NRTH Tiers and these replacement studs and haven't fell or even came close to crashing. TRULEY AMAZING!!!!!!!!!!!!!!!!!!

I bought these to replace the frequently missing studs on my Gravdal tires. Price is decent for 100 but it's a little annoying how often I need to replace them. They are a direct replacement for the original studs and the optional installation tool makes replacing them a piece of cake.

Very easy to install. Works great in icy conditions. Great price and shipping expense