Flat flat

[cyberknight]

Given the op struggles to change a tube given age and weight of the bike I just thought ride quality might take second place

 

[N0bodyOfTheGoat]

How wide are the tyres?

@Dan_Lotus mentioned Craft Cadence TPU tubes a few months ago. They do 4 tubes for the price of 3 at ~£54, they're thicker than a lot of tubes, have a removable core and unusually can have Muc Off or Oko tubeless sealant injected into them.

They only do a road and a gravel tyre size, max 47mm, but combined with Marathon Plus tyres, you would be incredibly unlucky to get a puncture that didn't seal.

https://craftcadence.com/products/superlight-tpu-inner-tubes-road-or-gravel?variant=55027073810812

 

[Octobiker]

Sorted. No 1 prob to turning bike was handlebar clutter. I used two pieces of pipe insulation to give me enough added height to clear my light bracket and Bosch controller.