What Omnium has to say:

The SRAM Transmission Insert for Omnium frames gives you the option to install the Sram T-Type group sets on your Omnium Frame. This kit includes all necessary parts for a seamless installation on your Omnium bike.

Features:

• Compatibility: Specifically designed for Omnium v3 & V3ir frames, ensuring perfect fit.
• Durable Construction: Made from high-strength CNC milled 6061 T6 Aluminium
• Complete Kit: Includes all required bolts, washers, and inserts for a hassle-free installation.

Included in the Kit:

• 1x Transmission Insert
• 1x Transmission Brake Insert
• 1x Axle
• 4x Bolts with washers