The V3.0 Adjuster kit is designed to suit all OTK chassis types built 2022 onwards and all IPK chassis types built 2021 onwards. It also fits and OTK Cadet and 4SS chassis types built between 2019 and 2021. See table below. Cadet EOS Exprit (2019 onwards) Formula K (2021 onwards) Kosmic (2019 onwards) OK1 (2021 onwards) Praga (2021 onwards) Redspeed (2019 onwards) Tonykart (2019 onwards) Senior EOS (2022 onwards) Exprit (2022 onwards) Formula K (2021 onwards) Kosmic (2022 onwards) OK1 (2021 onwards) Praga (2021 onwards) Redspeed (2022 onwards) Tonykart (2022 onwards) The Kit includes: 2 x V3.0 adjusters 2 x Angled mount spacer (IPK cadet only) 2 x adjusting side plates All bolts, nuts, washers and accessories required for Fast Adjuster kit fitment Weight (no fixings): 450g (15.9oz) It is recommended that Fast Adjuster kits are used in conjunction with a secondary set of side plates, if you use seat stay/struts. This will achieve maximum efficiency when adjusting the seat position. All karts are based off current models as of 03/2021