Hoping tririg pro Ben can comment
I am considering adding this to my cervelo p2 51cm current year.
I am wondering if this will work with my shimano 105 front brake?
Eventually I want to get the alpha one setup, but this looks like it would hide a lot of the cables in the front
Any ST ers have this set up on a non tririg bike?
tririg does not appear to offer returns if this does not fit
Is the omega x brake the better option?
I believe the delta is made only for alpha one handlebars. I don’t see how you’d attach it with the standard bars on the p2. If you’re already thinking about getting the alpha one, then I would just go all in with the bars,cover, and brake (if money is no object). Painted up to match would look pretty cool!
I have P2 size 51 as well just like yours. I already have Tririg brakes but I didn’t want to ghetto rig it so I didn’t pull the trigger on delta cover. I have old Tririg sigma stem but it won’t be a clean install without the Alpha handle bar.
I have a 54 P2 that I’m in the middle of swapping the front end of a P5-6 with to clean everything up except for the pesky brake cable that goes through the right side of the top tube. Hard to do paint in the middle of winter though…
As others have said, the only brake guaranteed to fit under the Delta is the Omega-X. Definitely do the Omega-X first. It’ll be faster obviously, but it will also look much cleaner. I’d say if you’re budget limited, go with that for a while and then if you want to clean it up even further, go with the delta. Also having a stem with a center-pull brake hole would help with the cleanliness a lot (the Sigma would be perfect, but there are other options as well). Back when I was on my 2012 p3c and had a Omega X front brake, I probably would have gone with the Delta cover if it had been available at that point, however that should probably be your 3rd upgrade after brake and stem (or bars).
Thank you Ben and STrs,
Great advise
Probably will go with the omegax soon. Kicking myself for not pulling the trigger on black friday
Some things to ponder before pulling out the credit card
The Delta saved <15gm of drag on the Omni. At most that’s a 1.4w savings at 30mph which at 40k is going to be ~ a .7w savings. At most you’re looking at :06 over 90k if you ride 40kmh or slower.
Your better bet would be either the Tririg Omega brake (at a $30 increase) or the Vision TriMax aero brake (which retails for ~ $95 and represents ~ a $45 cost savings over the Delta). Those two brakes are going to save you 3-3.5x the Delta will.
The Vision brake is ~ 1w slower across all points on a yaw sweep and <1w in the middle of the sweep. Either of those brake are going to represent a better aero bang for your buck.
Hope that helps
Great info
thank you
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I never actually formally mounted mine but it appears that a Magura RT6/8 brake would also fit under the Delta cover too. I placed the Magura brake inside the cover and it seemed like it would fit fine. I just decided I didn’t want the Delta before I actually mounted it with that brake
I wish they made a direct mount version of that brake 
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I’ve seen those numbers before and I’ve always been curious if that is with a brake cable and housing running or brake only. I always assumed the center pull feature was a significant part of the aero gains.
Some things to ponder before pulling out the credit card
The Delta saved <15gm of drag on the Omni. At most that’s a 1.4w savings at 30mph which at 40k is going to be ~ a .7w savings. At most you’re looking at :06 over 90k if you ride 40kmh or slower.
Your better bet would be either the Tririg Omega brake (at a $30 increase) or the Vision TriMax aero brake (which retails for ~ $95 and represents ~ a $45 cost savings over the Delta). Those two brakes are going to save you 3-3.5x the Delta will.
The Vision brake is ~ 1w slower across all points on a yaw sweep and <1w in the middle of the sweep. Either of those brake are going to represent a better aero bang for your buck.
Hope that helps
Very interesting
So putting the Delta Aero cover over the Omega brake actually Makes you slower than using the bare Tririg Omega brake?
If so I’ll take the Delta aero cover off
I guess it would make sense as it increases frontal area?
I’ve seen those numbers before and I’ve always been curious if that is with a brake cable and housing running or brake only. I always assumed the center pull feature was a significant part of the aero gains.
I ran the test on my scott plasma. IIRC the Vision brake was still cabled since it went first. The Tri Rig brake was not cabled bc I was too lazy to cable it up while the clock was running.
I’d have to go look at the pics to double check but can’t remember when I did it.
Unfortunately / fortunately I’ve got 100s of testing files which is a lot of digging around to fine those 2 runs.
So putting the Delta Aero cover over the Omega brake actually Makes you slower than using the bare Tririg Omega brake?
If so I’ll take the Delta aero cover off
I guess it would make sense as it increases frontal area?
No. The Delta cover saved about :05-:07 secs per 90 km.
The Omega brake vs a traditional brake is worth more savings. If you’re starting with a clean set up the way to prioritize things (in my mind anyway) is what gives you the best aero bang for your $ long term. That’s where the Vision Brake then the Tri RIg brake will rank out ahead of the cover.
The cover is unproven on anything but the Omni. IMO it’s a flip of the coin if it works well for your setup or not, unless you’ve got the omni. We’ve been fortunate over the years to test many parts such as draft boxes, boxes that fill in the bottom of the frame triangle, front covers etc that people/companies have designed.
For every 10 we’ve tested <2 actually worked. Could be the part, could be the bike, could be the interface between part & bike. It’s harder than most people think to make something that is aerodynamic
Sounds like to me the only way to be sure here is to buy an Omni. I think that pretty much solves everything. 😉
Seriously though, the Omega X (or other aero brake) is the obvious first step here. Beyond that is mainly cable management depending on what your current setup is like.
The cover is unproven on anything but the Omni. IMO it’s a flip of the coin if it works well for your setup or not, unless you’ve got the omni.
Maybe “unproven” to you, but we ran tests both on Omni, and on a traditional double-diamond frame, and our results showed similar savings on both our radical design, AND on traditional designs. That data is publicly available in the Aero Data page for Delta. So we do consider it to be proven for both standard bikes and radical designs.
So, to be perfectly clear to those reading, YES Delta makes the whole system faster than just Omega alone. This was true when we designed the original Omni-specific cover (before Delta), and it’s also true for Delta.
Could you please delete your post and repost it
The way it is is it looks like I was saying it’s a coin flip which I didn’t say
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Sorry about that. I was quoting desertdude, not you, just a tag problem. Fixed!