Hey
I got the technical report for my R1 Brake on the 3EN2 (here in germany we have to have every mod in the registration certificat), but he wrote "with 298x5mm Brake Disc" (Thats the R1 RN04 measurement).
Now I'm wondering which disc diameter the 3EN2 has, can somebody tell me?
(the bikes not here at the moment)
greetings
Marcel

298mm Diameter

The diameters are the same but the carriers and how they mount on the wheel is different. That's why the Blue Spot caliper conversion is so easy on these

thats perfect

Thank you for your, like always, fast help :-)