The 2020 SL frame and fork is 1.84kg or 4.06lbs
The 2021 SL frame and fork is 1.91kg or 4.2lbs
The 2020 SLR frame and fork is 1.34kg or 2.96lbs
The 2021 SLR frame and fork is 1.56kg or 3.45lbs
All disc brakes…and for some confusing reason I pulled Emonda weights. Sorry about that