Ultegra OSPW on 105 mech?

[crazyravr]

So I accidentally bought the OWSP from Ryet that was under Ultegra. Is it possible to install this on a 105 (which is what I have) or is this a completely different unit?

[jonathanf2]

So I accidentally bought the OWSP from Ryet that was under Ultegra. Is it possible to install this on a 105 (which is what I have) or is this a completely different unit?

It won't fit. The Ultegra interface section is slightly wider/beefier in diameter compared to 105.

[alfiomotrambo]

So I accidentally bought the OWSP from Ryet that was under Ultegra. Is it possible to install this on a 105 (which is what I have) or is this a completely different unit?

You need to buy the R7000 version https://it.aliexpress.com/item/1005008224723774.html

[crazyravr]

Yeap. Returned what I bought and bought the proper 105. Alternative was to buy an Ultegra groupset, but wife said no lol
https://www.aliexpress.com/item/1005004994843543.html

[Lotnik]

Just send it back, it's a crap. Sander2177 had two and both got damaged.

[Dan S.]

Just send it back, it's a crap. Sander2177 had two and both got damaged.

Oh yea? @Dovh and I are both using the 105 Di2 version and it’s been rock solid. What happened?

[Lotnik]

Oh yea? @Dovh and I are both using the 105 Di2 version and it’s been rock solid. What happened?

If I remember good one lost bolts during the ride and lost pulley wheel, second got loose on the mount to the derailleur after few rides too.