28mm upgrade — BikeRadar
Road cycling forum
Cube 2016 LITENING C:62 PRO
Wheels fulcrum racing 55, outside rim width 23.5mm
Firstly will they fit, it looks tight on the back end.
Secondly, is it worth it?
Any advice on this please?
there doesnt look a lot of space in there right now. I would guess no they wont fit.
That's a 25mm tyre atm.
There is 2.75mm clearance in the height direction from the tyre up to the frame brace where the calliper is bolted.
I'm not sure if a 28 will actually add 3mm to the height of the tyre, c17 wheel btw.
try them then. Avoid dirty roads though, there may not be any room for grit or dirt to pass through the arch at the top.
I don’t think 28s will give you enough clearance. It all depends on which tyre you fit though. I just fitted 28mm GP5000s to my bike and they aren’t as high as the old 4000s. Height is about 31mm on the 5000s from rim.
All else equal expect to add 2-4mm in height going from 25 to 28. That's my experience with GP4000s. It'll vary tyre to tyre, rim to rim, but it will add something. You're already on the limit of sensible clearance, going even lower is asking for trouble.
25mm GP4000S IIs measure ~27mm (similar to Grand Sport Races), 28mm GP5000s apparently measure ~29mm (similar to 4 Seasons).
I've got a 23mm and 25mm GP5000 to fit on my 17mm internal rim width Hunt Aero Light Disc wheels later in year, I'm expecting them to be ~23.5/25.75mm respectively.
2020 Voodoo Marasa
2017 Cube Attain GTC Pro Disc 2016
2016 Voodoo Wazoo
Looks too tight to me.