putting my 21 back on the road

[Cadey21turbo]

There's only one type, 55mm

Timing Belt Tensioner Pulley FEBI BILSTEIN Renault 21 2.0 Turbo 4x4 | eBay

Cheers

 

[DaveL485]

The 60mm is listed for phase 1 and 55mm for phase 2. Mine is a phase 1 but local spares are saying the 60mm isn't available

There were technically two types I spose, kind of, because the phase one tensioner was tension set by a spring capsule housed in the water pump, pushing on a tab on the tensioner mounting plate.
I chuck those in the bin though and fit the non-spring-capsule ones anyway. The one I linked will work fine.