Originally Posted by
monkeyracing
Found it. It's listed in the manual for the TB Evo.6 MS...blah, blah, blah. The 05 v2 R appears to use a short TRF damper, but not the big bore version. It's p/n 19804876.
Huh. You're not wrong. I've always thought the R spec shocks were big bores, but nope, I just measured them against the 42291 big bores. Outer dimensions appear identical, but the inner bore is 0.5mm narrower on the R spec. I guess that explains why the standard ones have a smooth edge around the top collar and the big bores have the knurled edge.