Source of C19524 belt that's actually the correct length?

[PhilBell]

Has anyone found a source of the C19524 belt, labelled SBS1010, that's made to the correct 1010mm circumference? It's the late 3.8 double V design.
Back in 2018 when I fitted a ProRace crank damper upgrade requiring a switch to double V pulleys, all the belts I ordered were up to 20mm too short, which would put catastrophic strain on the water pump pulley, not to mention making roadside fitting near impossible. In the end I was given a correctly made belt by a friend, but origin unknown.
Before anyone suggests trying other E-type belts, anything longer or shorter than 1010mm won't work. Been there, wasted time on that.
Six years on, I'm hoping someone will have found a good source, before I resort to ringing every supplier asking them to measure their belts before I order.

[mgcjag]

Go Direct to Gates...belt manufacturer and check either online or with their technical depth...Steve

[JerryL770]

The length of a belt is usually indicated by its manufacturers part number and the section/type by the letter(s) in that part number.

[PhilBell]

Hi Jerome, the correct size is indeed the part number and tends to be printed on the belt (in this case SBS1010), but my problem is that the actual size tends to differ by up to 20%, rendering the stated size irrelevant.

[PhilBell]

Success! Ended a rainy bank holiday afternoon on a high. After phoning several suppliers of the C19524 belt, the helpful John at Crosthwaite & Gardiner agreed to measure one of theirs to check the circumference. He quickly came back to me with confirmation that the outer circumference was 1020mm, so I ordered a couple and they came today. So, after a frustrating day spent trying to sort a new electrical fault, I chose to end my weekend (hopefully) on a high. Well, the new belt could be persuaded onto the pulley with firm finger pressure and no need to lever it on, wind it on by turning the engine on the crank pulley nut or any other forms of force. That just left the tension to be achieved by means of the dynamo check strap, as it should be. The belt wasn't cheap, but after past struggles with incorrect-length ones, I think it's excellent value.

[mgcjag]

Phil...so what belt and part number did you get?.. Steve

[PhilBell]

C19524, so correct double V profile.

[mgcjag]

Hi Phil..so from where?...SNGB have C19524 details as 1010mm..Steve

[PhilBell]

Crosthwaite & Gardiner. All the ones I tried previously from other sources were labelled SBS1010 but were much shorter than that when I measured them.