Unique CAGE SIDE MOUNT system offers a smart accessory carrying solution under bottle cages Adjustable angle, ideal for large downtubes on E-Bikes or MTBs Compatible with designated mini pumps, tools, and CO2 cartridges Includes two 16G and two 25G CO2 cartridge holders Weight 29 g Size 11 x 8 x 3 cm Material Engineering grade polymer 16G Holder Compatibility CO2 Cartridgesa 16G (TCOT-2 / TCOT-7 )Mini Pumpsa TWO TIMER XT (TTT-X02) a TWO TIMER X (TTT-X01) a * MICRO ROCKET Series (TMR-AL / TMR-CB) a RACEROCKET Series (TRR-2 / TRR-HP2 / TRR-HPCB1 / TRR-HPM1 / TRR-M1 ) a ROADIE Series (TRD-2STG / TRTT-1 / TRTT-2)Toolsa TUBICARTRIDGE T16 (TUB-C05) a TUBICARTRIDGE G16 (TUB-CG) a TUBICARTRIDGE R16 (TUB-CRD) 25G Holder Compatibility CO2 Cartridges / Inflatorsa 25G (TCO25-4) a AIRBOOSTER PRO (TAB-P01)Mini Pumpsa RACEROCKET MT (TRR-MT2) a PEAK DX II (TPD-3) a GRAVEL 2STAGE (TGV-2STG) a MINI MORPHA(R) G (TMM-1G / TMM-2G) a MINI MORPHA(R) (TMM-1 / TMM-2)Toolsa TUBICARTRIDGE MT25 (TUB-CMT)