Difference between these two motors?

[Rogue]

Hope they are not significantly less capable than the "88" ones.....

That's the thing. If there's £30 of capability between the two I'll spend the £30 as originally planned. If not, that £30 saving is a godsend and will still be given to Zapp in one form or another

[Jonathan]

I've found the cheaper ones from CNC4YOU to be fine and they look the same as the ones pictured in Zapp's listing:

Nema23 3.1Nm

Just measured and mine from CNC4YOU are 86.5mm. The black ones I have from Zapp are 88mm.