Hello Eric!

Thank you very much for your assessment. The 54cm is in stock at my dealer and he gives me a very good price.

Do you think I can't get the position with the EX10 riser? A bit deeper should definitely be feasible.

Or is the 54cm a no go in your opinion?

The other problem I still see is the height of the basebar. But I have the option of putting both bikes next to each other.

I'm not sure what kind of saddle it is now. But I'm not committed to that.

Many greetings
Heiko

Hello Eric,

I read your post and therefore I am not sure if it’s the right place and if you can help me.

I’m interested in the cervelo p series 2020, as I want to “upgrade” to a proper tri bike. I usually race on my canyon ultimate with tri extensions. I don’t have a real fit there as I just put it on as they are and use it. For an Olympic that worked so far. Now I want to try a 70.3 and thinking of the p series as a bike upgrade.
I’m 186,5 cm (~6 ft 1,5 in) long, have a inseam length of 90cm (35,4 inches) and an arm length of 64 cm (25,2 inch) measures from shoulder to wrist. My lbs says I need a 58 frame, but I read that the tri frame should (or could?) be a size smaller and I have the canyon in size 58 with 100mm stem (as the 120mm was a bit too long).

Can you help me find the correct size? Is the 58 good or should I go for the 56.
If I’m wrong here, sorry to bother you.

Anyway, thanks for your service

Fabian

Hi Fabian, thanks for reaching out.

The tri frame ABSOLUTELY should not be smaller than your road bike frame... this horrible meme needs to die. I’d anything, it should be one size larger.

I would agree with your LBS in that you need a 58cm bike... I’m the same height and inseam as you and that’s what I would ride... a 58cm.

Make sense?

Eric

Hi Eric,

I would like to purchase a second hand P5 2019 disc sram axs size 56 with Zipp Vuka Shift AXS 90.

i am currently riding on a bmc tm01 size M short ( stack 515 reach 377) from ? 2012 with pro missile flat bars extensions.


i am 1,895 tall

measures of my bmc :


saddle high : 806
arm pad stack : 61,5
arm pad reach : 46,5


do you think the 56 will fit?


many thanks in advance for your feedback


phil

Hi Eric,

I am looking at the 2021 P5 Ultegra Di2 or P-Series Ultegra Di2. I am currently on an older Specialized Transition Pro, with a good fit done on this bike a couple of years ago.

Reach: 410
Stack: 620
Seat Height: 696
(all from BB)

I am 5'4" - long limbed with a shorter torso.

It seems that I am close to the top of the stack range on the size 48 P5. Is this okay vs the size 51, where reach might be more of an issue for me? I am leaning towards the P5 (vs the P-series), and want to ensure I will fit on this more aggressive frame.

Thanks!
Sherrie

Hi Eric,

I currently ride a Medium Shiv in distance up to 70.3 at this stage, but I will be moving up to full distance racing in the next 2 years. I stand about 188cm tall and have reasonable flexibility, although on my current bike, I do experience headaches the day after spending a few hours on the TT, although this could very well be muscular related as I've always had tight neck and upper back.

I recently went and got a bike fit done here in Brisbane and my fit wasn't too bad. We tinkered with saddle angles marginally and changed my arm cups to have a 15° tilt, but that was pretty much it. My fitter said that my saddle is as far back as it can go, but he'd like to have less offset on the seatpost and move me further forward of the bottom bracket. Subsequently, I'd need to increase stem length 20mm, but that would be a short term solution.

He said that in an ideal world, my stack would be about 700mm and a reach of about 450mm, Working off the little calculator thing on the website, my C measurement is 680 and my F is about 450. that's based on measuring to the arm pad pillar and where it joins the underside of the arm pad cup.

I am wanting to upgrade my Shiv to a previous generation P5-six, and Australia only has a 56cm and a 61cm in stock anywhere. Do you believe that either of those would suit me and what my fitter would be trying to achieve, or am I doomed to not fit one of these frames?

Thanks,
Ben

I can't see the picture.

I know. I'm struggling with the 'inline' option. Have attached it as an attachment instead.

Thanks Eric. I really appreciate the advice. Normally my head is much lower than what it is, but I was getting ready to turn around and also just generally having a bit of a relax on the run into the corner.

If you're happy that I'd be OK on a 56cm, I'll get that ball rolling!

Hi Eric,

I just noticed a piece someone wrote online about the EX10 riser system pad plate being reversible:

"The EX10 setup has a pad plate which is reversible and this accounts for the increased fore-aft adjustability for the arm pad reach position".

Would this "reversibility" give be some wiggle room in case I need to shorten my reach slightly if I went with the size 51?

Best Regards,
Sherrie

Hi guys,

Maybe a fit question... looking for some experienced advice. I've been riding my cervelox px.. I've had a fit done... I've ridden tt bikes for the better part of 6 years...

I've ridden and tinkered around with the position for the month and I'm having a problem I can't seem to fix. In the TT position my left leg seems to build a ton of lactic acid and never let's it go in only 1 of my quad muscles. My right leg is completely fine.. no issues. This seems to happen at what I think is a decently low effort. I can't get my hr over 165... normal max is 187... the pain build is ... intense...

Normally my left leg is my strong leg on the road bike... normally averages 51 or 52% power and the right legs at 49 or 48%... and in the tt position it's the opposite... right leg is stronger.

I'm not sure if it's one leg is longer or if my left hip is dropped a little.. or if you've heard of anything like this... I tried to lean a little to the right side of my saddle and it does let some of the build in lactic acid go down.

I'm up for suggestions if you have any.