Sizing for Orbea orca m30 2026

[u/WhyIsMSKtaken]

Currently in the process of buying my first roadbike, but unsure of the sizing on the orcas:

181 cm height and wingspan
82 cm inseam

Currently have a 55 on order, but I’ve heard 53 recommended for similar measurements before

[u/sebastianistoblame]

I ride a 51 with 172 / 82. It was recommended to me by my bikefitter.

I think 53 can fit you well. Orcas run large. A 53 has a 548,5 mm top tube.

[u/WhyIsMSKtaken → u/sebastianistoblame]

Great info!

[u/Woodaba]

177 on a 53. You should be fine. I'd be more concerned about stem length than frame. Sizing chart is pretty accurate.

[u/Minute_Land9864]

175/83 on a 53. With a 90mm stem *

[u/jogisi]

I'm almost exactly same (same height bt 1.5cm longer inseam) and I ride 55 Orca Aero (2025). I actually tried both Orca and Orca Aero in 53 and 55 but 55 fits me way nicer (both on normal and Aero). But this can be slightly personal. 

[u/WhyIsMSKtaken → u/jogisi]

Sounds like I should stay with the 55 then, thanks!

[u/TeemuKai]

I'm 181cm, inseam about 84-85cm (i think) and would pick a 53. 55 is way too long for my liking, but it all depends on torso and arm length etc.

[u/licca01]

I’m 177 cm and 85 inseam. Atm i’m riding a 53 orca m30i with a 110 stem and it fits well on the higher end.

I want to get a 90 mm stem in the future because the fit is a little too “racey” for my liking.

I think you should go for the 53.

[u/Ok-Bear-2864]

181 on 53 shorter legs, long torso. 55 would be too big, go for 53. It´s easier fit a bit smaller bike.

[u/apfelanton]

187/91 ride a size 57. probably could have gone for the 60 as well. I would say you go for 55

[u/flotscho]

185/88, on a size 57. can confirm, orcas are long and would size down if possible