FELT F2 build aka: carbonpornspeedmachine

Discuss light weight issues concerning road bikes & parts.
RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

Thanks stef. The carbon looks great! Just waiting on Darimo to develop a 38cm bar, and for spokes to be sorted for the rear wheel build.

The frame has never been weighed as this has been a “rolling restoration”. I will measure the entire bike again once i get the darimo components back on. The deep wheels and aero bottles will hurt. Online numbers were limited, but I found 880g size 56, 326g uncut fork. So less than 1200 is a safe bet as I have a 51. Thr f series Frd is apparently 950g (-250g savings). If i ever find a f series frd frame in 51 (or FR frd frame) used, i might jump.

Shaving clearcoat is beyond what i am willing to do however.

Current calculations put it at 13.4lbs in full aero kit, including garmin vector 3 pedal, varia radar, edge 130. Stripped like you might get it from factory (no bottles, electronics or pedals) it will be 12.7lbs. 12.2lbs stripped if i kept the mavic r-sys slr wheels. So 11lbs would be doable with a frd frame, and some high end tubular wheels. Doubt i will go there however, as that last 1lb could get me a fine new tt or aero bike.

RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

So why is this bike called the carbonpornspeedmachine? These crappy photos should explain it. Instagram quality stuff with an excess of post processing filters will go up when i get my matching darimo bars and seatpost on the bike.
3C841FC6-4689-4718-B38F-4F6A84BF2AB1.jpeg
145C8BF8-A6DE-4A69-9F55-D4656E4670D9.jpeg
688A8649-7030-4505-AEDA-B7F75091D044.jpeg
Visually i am digging it, but it was almost too much carbon porn. There are obviously finishing touches left to go, but it took my brain some adjusting as the 56mm rims looked more like 80mm at first. Plus the cxray spokes looked like toothpicks compared to the carbon spoke treetrunks of the old mavic wheels.

And no, the casette is not on, and yes, the chain is sagging as a result.

And oh yeah, i need to set up my ee brakes to be sure they fit. These are second gen and should be good to up to 27.5mm rims. I should have a mm margin or so. It will be close. May need low profile pads.

by Weenie


RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

Here we go. Some improved pictures. Man this thing is fast! Still waiting on bars, seatpost, and tires.
EA7B3C27-97B7-4570-8AEB-5100E7227954.jpeg
0873B651-79F5-40D3-AB4A-4B5B1F89DFB2.jpeg
3E09729A-CD61-432D-86EF-2883FA9A4B15.jpeg
B3542C1D-41B0-4DFC-B888-915990AF5622.jpeg

hannawald
Posts: 429
Joined: Sat Dec 17, 2016 7:28 pm

by hannawald

I really like it:)
How are the bottles? They look great but I have read they don't hold in place very well..

RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

hannawald wrote:
Sat Mar 30, 2019 11:25 pm
I really like it:)
How are the bottles? They look great but I have read they don't hold in place very well..
Thanks, I like it too. I would say it is unique in the world of road bikes with all the matching wide weave Carbon.

The jury is still out on the bottles. They were super firm brand new, to the point where it is work to get them out. I can’t see them falling out, and rattling is currently out of the question, even on rough stuff. That being said, i am sure time will loosen thinks up a bit. Also, no leaking as some have reported. And they require a good squeeze to get the water out. As the membrane stretches and breaks in, things may change. But again, so far, so good.
Last edited by RocketRacing on Sun Mar 31, 2019 2:18 am, edited 1 time in total.

RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

Just a few notes on my first ride of the spring.

Comparing new to old wheels/bottles is lost as 5 or so months have passed, and fitness is up. That being said, still recovering from a cold, and with two weeks off the bike, i was within a second of my pr’s for a few strava segments close to home. Cool temps and higher air pressures probably did not help times. My power meter battery was low and it kept cutting out, so data was crap.

I also made a huge change in tire pressures. Last year i was running 90 to a silly 110psi. This time i ran 65psi give or take! Things felt very comfortable. I went by the sram tirewiz app suggestions based on my weight and tire width (i went between advice for 28c and 25c given my 25c gp4000’s measure 27mm). The app seems to be pretty spot on based on modern best practices for real world road conditions, but i will likely fool around with a bit higher, and a bit lower.

robeambro
Posts: 344
Joined: Sat Jul 07, 2018 6:21 pm

by robeambro

RocketRacing wrote:
Sat Mar 30, 2019 9:23 pm
Here we go. Some improved pictures. Man this thing is fast! Still waiting on bars, seatpost, and tires.

EA7B3C27-97B7-4570-8AEB-5100E7227954.jpeg

0873B651-79F5-40D3-AB4A-4B5B1F89DFB2.jpeg

3E09729A-CD61-432D-86EF-2883FA9A4B15.jpeg

B3542C1D-41B0-4DFC-B888-915990AF5622.jpeg
Dude, and you wanted to also get a full aero tt bike? This mean beast is all you need, can do everything and it's hot! :mrgreen:

RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

robeambro wrote:
Sun Mar 31, 2019 6:01 pm
Dude, and you wanted to also get a full aero tt bike? This mean beast is all you need, can do everything and it's hot! :mrgreen:
Thanks. Hot for sure. It is nice to walk into the prom/club/etc and only be looking at the lady on your arm.

But what had me going was this with 80mm matching wheels:
5078DD42-C64B-45C7-A9C4-52561AA25D26.jpeg
But riding in some decient crosswinds today with my 56mm u shaped rims reminded me that I am probably in a good place with what I have. Predictable, but much more would get dangerous. A Felt IA with 80’s would have probably sent me off the road once or twice. A few strong sudden gusts had me saying “oh shit” and pausing. As a friend said, tt bikes look really good on a wall, but most of my friends that got one sold it after a couple of years.

Note to self, my elite bottle did leak a little on the downtube. And when empty it had the slightest of rattle. The rear is still solid as i have hardly used it, so it is still pretty firm. I think time/wear is when the weakness of the bottle design begins to show.

RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

More marginal gains:

So i covered up all unused frame wire entry/exit ports with tape. I also did the same for the holes through the crank/bb.
922F564E-4AE7-4B5A-8E84-B0977EDBD991.jpeg
989C17EA-3E4E-4FD3-AB4F-C750C16D7373.jpeg
4F081DBA-CB44-4972-BA75-31942F9CD7B9.jpeg
94508227-E030-4664-9A81-435E30128EC9.jpeg
A few more coments on the wheels: braking is much better than expected (dry). They just have a basalt carbon braking service based around 3k carbon weave brake track. I am using old swissstop race pro pads (yellow king). I sanded them down to ensure there was no contaminate as i had used them a few times on my mavics. Contact points are a mess for one, but new black prince pads will arrive in a day or so... so i will be starting from scratch anyway.

Stiffness: as expected with the rim depth, i can detect no flex. in a hard sprint in the mavic r-sys wheels i had to watch for rub in the rear.

The rims are round and true externally , but the innter diameter is a little less perfect. Apparently it was the hardest rim to lace this year at the shop, but it came out straight and i have only had one spoke “ping” up front in a sprint where my weight was very much over the front tire.

Hubs. So far they live up to the reputation of being loud. But the 56 points of engagement sounds bad assed.

So, latex tubes in chinese carbon rims with top end hubs and spokes, and a very light rider.

RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

153522ED-219B-48C1-B02D-1F00E94F3046.jpeg
A few thoughts:

- my latest photos is closer to instigram worthy, but the bike is not yet done.
- using black prince pads. Did not get low profile evo pads (bike shop error), but i don’t need them with gen 2 ee brakes. Phew
- still waiting on darimo bars, post, post clamp.
- running vector 3 power meter left, xpedo thrust ti sl on right. All fit/position/thickness specs identical, but cleat is not interchangable, so i have different cleats on each shoe. I can not feel any difference when clipped in.
- contemplating twin tubular wheelset for climbing use (1.2-1.5 lbs saved in 40mm and 56mm deep respective).
- This bike is comfortable. Rims are laterally stiff.
- i want a lighter front big ring, but carbon ti and extralite don’t have great reports on shifting quality.
- contemplating thm cranks... but so expensive.
- i no longer want a tt bike. Too much local wind. This bike is enough.
- i have some cool custom vinyl ideas

Alexandrumarian
Posts: 274
Joined: Mon Mar 28, 2016 6:34 pm
Location: Romania

by Alexandrumarian

Looks great! What's up with the cleats, aren't those Expedos on keo too?

RocketRacing
Posts: 454
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

Alexandrumarian wrote:
Mon Apr 15, 2019 9:10 pm
Looks great! What's up with the cleats, aren't those Expedos on keo too?
Good question. I may not have looked closely as the look were a bit heavier than the expedos.

So far so good. My only issue is that i need another set of road shoes for indoor use (i just want to plug and play, no pedal swapping).

Post Reply
  • Similar Topics
    Replies
    Views
    Last post