OG-EVKIN RD-01 pully guide jocky wheels for ultegra R8000 and you can get one for 105.

Just got this bad boi so I can save 2 watts and look cool doing it.

[@pierrerenault5210]

Hi, Hows the durability, is it still ok after 3 months of riding ? Thanks

[@therandomguy5742]

I haven't ridden with it yet. Since the date I purchase and received the RD-01, it is still our winter season. I can say I have purchase OG-EVKIN items and they are good quality.

[@Bicycle789]

Hello. Can you tell me what type off garings are inside? Are they seallet? Or its just regular aliexpress ceramic barings? Thx

[@therandomguy5742]

Sorry for the late response. I have not taken the bearing apart, however they are ceramic. I will do an up date with this unit when I get a chance to ride with it.

[@Bicycle789]

Ok thanks.

[@therandomguy5742]

When I have time, hopefully in a week or so, I will do a video and open up the pulley wheel and see what's inside@@Bicycle789

[@us2043]

the fast it spins without load doesn't mean that its better Tham the Shimano one. same with wheels and bearings. cheers

[@therandomguy5742]

Fair enough, however, since I've installed I've had a increase of least a few km, or I've gotten stronger. To me I feel faster.

[@paulbueno1418]

Is this compatible with R7170 di2 12s long cage?

[@therandomguy5742]

You will have to check with the vendor. www.aliexpress.com/item/1005006020137349.html?spm=a2g0o.order_list.order_list_main.98.176c18023uV6K7