As many others, my front tire inner tube exploded while parked under the sun for less than 30 mins.

Rad does not have stock on tires and inner tubes, so I am left without bike for the foreseeable future, which sucks.

I followed the advice of other posters here and on r/radpowerbikes and purchased motorbike inner tubes (Michelin Airstop Butyl 18ME for 9?).

They are significantly heavier (530g vs 290g of the stock ones) and are a good third larger, but they seem to fit, though I'd not inflate them past 20-25PSI.

I am also looking at the Kenda 2.75/3.00-18 TR4 inner tubes, and the Michelin 18 MC 2.50-18 in case they are lighter / narrower.

Unfortunately the explosion damaged the tire or was caused by a tore defect, so I'll be looking at a replacement for that, too.

Michelin City Pro / City Extra tires look extremely heavy (>6kg) based on somewhat unreliable data found online. Duro HF918 or similar also look heavy at 2.5kg.

ceoloide

Howdy everyone,

what shifter cable brand / type does RadPower Bikes use on their bikes? More specifically, what does a RadCity ST 3 need?

I recently brought my RadCity 3 ST to a reputable bike shop in NYC, only to receive it with many things unresolved and more problems than I had before. Right now, the derailleur is not shifting up from any lower gear, and it's clear the shifter cable doesn't slide freely in the housing inside the downtube, while it moves freely in the derailleur section and inside the shifter.

I suspect the local bike shop replaced the wire or did something to the cable management, but I am not sure. I noticed today the shifter cable is marked "Jagwire Lex" so I am wondering if that's the original one or not.

Thanks everyone,

ceoloide