Brand: CST
The CST 9x2" tube is ideal for makes/models such as:
Dualtron Popular and split rim variants of Dualtron Mini and Togo.
These models adopt a 6.1" rim. The Dualtron Popular introduced an 70/50-6.1 tyre (2.75" wide, near 9" diameter) which is typically retrofitted to Dualtron Mini in lieu of the original Dualtron Branded CST 8.5x2 tyre. This tube suits both of those tyres. Use 90 degree valve in the rear motor hub, 45 in the motor-less front.
Bolzzen Commando 4818, which is the entry level model of the two TNE (Teverun) blue/black coloured models. It has 600w motors with 6" rim with factory fitted 9x3.00-6 tyre (see notes). Use 90 degree variant.
Models with 230x50 tyre such as Xiaomi MI3, MI3 Lite & MI4 Lite.
Apollo Go, which has a troublesome stock 9x2 {-6.1} Yanxing CY-344 self-healing tyre running tubeless operation. This tyre often splits / cracks / tears on sidewall even after limited use. For this model, eSN recommends considering the tubeless CST 9.5x2.5 {-6.1} where clearance allows, or the tube type CY-276 which is available from Ride Electric and also EcoMotion who suggest the 9x2{-6.1} tyre also suits:
Segway Ninebot: E22, E25, E45
Xiaomi: M365, M365 Pro, Mi 3, M365 1S, M365 Pro 2
GOTRAX: GXL V2, XR
Hiboy: S2
Other scooters supporting 9x2-6.1 tyre size.