race rig porn - show me your bike!

[chrisshaw1]

Leftover 2006 Scott Pro CR1 - all ultegra, compact crank... obviously I took off the chain ring/guide before hitting the road...

[LowCel]

It works fine, but thanks. I don't like the cpu on my bars.

cslone, djbowen is correct about the proper install on the powertap mount. The roundish part can be rotated so that it actually wraps around the stem and fits more "flush". I'm not sure if you can tell by my picture or not, I will try to remember to take a close up this evening. You can also check it out at one of the races this weekend.

[cslone]

My standard wouldn't rotate, so I had to mount it like that. Hmmm.........I'll have to look at mine now.

[cslone]

Cool, how are you liking your team sl now that it's built up, cslone?

I really like it. Not sure why it's so much better than my Team Pro, but it's definitely my favorite by far. I finally put the finishing touches on it Friday night, so I chanced it by racing on Saturday, but it was great.

[merlinextraligh]

My standard wouldn't rotate, so I had to mount it like that. Hmmm.........I'll have to look at mine now.

The cradle for the head unit comes in two pieces. The part that goes over the stem (or the bars) and the part that connects to the yellow head unit. Stick a thin screw driver in the slot to release the tab, and the two parts slide apart, then you can rotate the top piece 90 degrees and slide it back to gether.

[LowCel]

I really like it. Not sure why it's so much better than my Team Pro, but it's definitely my favorite by far. I finally put the finishing touches on it Friday night, so I chanced it by racing on Saturday, but it was great.

I can vouch for it, it is definitely a beautiful bike in real life. The photo's don't do it justice.

[djbowen1]

It works fine, but thanks. I don't like the cpu on my bars.

Q: How can I mount the PowerTap harness on my stem?

A: You can do this by crossing the zip ties so that they exit one side of the mount but cross over and enter the other side. A cleaner method, however, is to tightly wrap electrical tape around the stem and the lower part of the mount, behind the ‘ears.’ Be careful how much tape you use; too much will cause a poor fit between the harness and PT. With both methods it’s best to put a very small piece of pipe insulation under the harness to fill in the gaps.

You are not understanding what i am saying, the mount comes apart a few different ways and your IS NOT ASSEMBLED CORRECTLY. take a look at the pic. I have owned 3 of these units. The one in the picture is like the way you have yours setup for the bars and not the stem.

[Vinokurtov]

The completed Fuji SL1 climbing bike, post race:



I can post the build if anyone's interested. Sub 14 as it sits...

[bdcheung]

How are the Q-Rings working out? Gimmicky, or real-deal?

[Snuffleupagus]

What kind of cranks are those Vino?

[El Diablo Rojo]

I can post the build if anyone's interested. Sub 14 as it sits...

Please post the build, sub 14#'s that's crazy! I'm also waiting for your verdict on the Q rings. How are liking those cranks?

[Vinokurtov]

The rings are just hype. The bike is all 105 with Mavic Open Pros because that's all you really need
and you won't notice a few pounds anyway. I just take a big poo before the race.

For real:

07 Fuji SL1 frame and fork
Reynolds Cirro rims laced to American Classic hubs (ceramic bearings) with Sapim X Ray spokes
Tufo S3 Lite 21 tires mounted with extreme tape
Bontrager Ti Skewers
Campagnolo Record controls, front and rear derailluers, tuned with ti bolts
Nokon cables
Campagnolo 11/26 Record cassette with alloy lock ring (also use a Token 11/27 and Record 12/29, 11/23, 11/25)
Zero Gravity Ti brakes, Kool Stop dual compound brake pads
Stronglight Vulcan cranks (ISIS)
American Classic ISIS bottom bracket with ceramic bearings
Rotor Q rings 53/40
Campagnolo Ultra narrow chain
Look Keo carbon pedals
Reynolds Ouzo carbon seat post 31.6
Selle Italia SLR gel flow saddle (going to try the SLR XC gel flow, same shape a bit lighter)
Syntace F99 stem with Ti bolts
TTT Less 199 bars
Polar HR monitor, Sigma Sport computer (bottom end simple units)

I like the Q Rings enough that I've ordered a set for my training bike and my TT bike.
I'll be doing some testing with them and my Ergomo, but I felt they provided a smoother and more powerful pedal stroke on the climbs.
I'm willing to give up a slight weight gain for the additional power.

[cslone]

As for the Q-rings, I did two 10 mile TT's on a computrainer with round rings and two 10 mile TT's with the q-rings. Same course, same times, etc. Each 1 week apart, alternating bewtween the type of rings each time. I noticed a 7 watt gain the first round and 11 the second. Not real scientific, but whatever.

[bdcheung]

Well, the rings don't work with my Shimano compact crank, so I'd have to either:
- Get just the small (inner) ring
or
- Replace my whole crank.

YOu think it's worth it to just replace the 36 ring with a Q-Ring, and leave the 50 round ring?

[El Diablo Rojo]

Well, the rings don't work with my Shimano compact crank, so I'd have to either:
- Get just the small (inner) ring
or
- Replace my whole crank.

YOu think it's worth it to just replace the 36 ring with a Q-Ring, and leave the 50 round ring?

What is the BCD of the Shimano compact?

[bdcheung]

110mm, that's not the issue. The issue is that the Crankarm is cut in such a way that it interferes with the crank bolt holes of the Q-Rings. The only way to get the outer ring to work with the Shimano crankarm is to modify it, thus wise to achieve proper clearance:

[El Diablo Rojo]

110mm, that's not the issue. The issue is that the Crankarm is cut in such a way that it interferes with the crank bolt holes of the Q-Rings. The only way to get the outer ring to work with the Shimano crankarm is to modify it, thus wise to achieve proper clearance:

Gotcha

[bdcheung]

Gotcha

Ok, I gave you the explanation. Now you provide your constructive input

[El Diablo Rojo]

Ok, I gave you the explanation. Now you provide your constructive input

Time to ebay your Shimano crankset and get an FSA compact crankset Sorry it's the best I can do.

[UmneyDurak]

So whats so special about Q-rings? I looked in to their website seems like a regular chain ring to me.

[bdcheung]

The effective total # of teeth is variable. At the "dead spot", the teeth on their standard 53 chainring numbers 51, which helps the rider move past the "dead spot" faster. During the "power" portion of the pedal stroke, the teeth increase up to 56, making maximum use of the rider's power.

[El Diablo Rojo]

So whats so special about Q-rings? I looked in to their website seems like a regular chain ring to me.

They are slightly elliptical and the claim is that they lessen the dead spot in your pedal stroke. Bobby Julich of Team CSC uses a very exaggerated version by another manufacture and he claims they helped to save his career.

[Vinokurtov]

As for the Q-rings, I did two 10 mile TT's on a computrainer with round rings and two 10 mile TT's with the q-rings. Same course, same times, etc. Each 1 week apart, alternating bewtween the type of rings each time. I noticed a 7 watt gain the first round and 11 the second. Not real scientific, but whatever.

That dovetails with what I've heard from others who I trust as very credible. I talked at length with Bobby about the rings, he put his gain at 20-25w, I think he's starting a bit higher than the rest of us. The Osymetrics (the rings he uses) are even more pronounced in their shape.

The Q rings will let you index to match your particular pedal stroke; I ended up setting up mine a bit forward from their initial suggested starting point.

They require a bit more time setting up the front derailluer, and they don't shift quite as smooth as OEM Dura or Campy, but they aren't bad and I haven't dropped a chain with them yet. I've got some compact rings coming, so I'll pass on what I find with those.

Ok, I gave you the explanation. Now you provide your constructive input

Call the exterminator, you got aluminum termites.

[bdcheung]

Call the exterminator, you got aluminum termites.

I don't get it

[fly:yes/land:no]

I don't get it

is he referencing the chainring that is modified to fit crank that you posted earlier?