Racer Tech Thread
09-13-14, 09:07 AM
#476
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indeed, I'm learning a ton!
in fact i realized that my chorus cranks need some spacers to work on this bb.. chain line isn't right at the moment (too close to the frame). the osbb is 61mm vs the 68mm i need it to be... (or something like that). wheels mfg to the rescue.
thx for the top hat offer, but I found a local shop that'll give me some.
in fact i realized that my chorus cranks need some spacers to work on this bb.. chain line isn't right at the moment (too close to the frame). the osbb is 61mm vs the 68mm i need it to be... (or something like that). wheels mfg to the rescue.
thx for the top hat offer, but I found a local shop that'll give me some.
I had a basic understanding of how things worked, and then I got a foil and had to build it 3 separate times, and maybe 5 times for the derailleurs if you count the times I crossed the cables in the downtube on accident.
09-13-14, 12:02 PM
#477
fuggitivo solitario
Finally got around to taking inventory of my 10s cassettes. i'm going to list on ebay within the next 24h. here's what i've got, in case anyone has a particular interest.
11-21: DA 7900 solid shape, trainer use
12-21: DA 7800 nearly perfect
11-23: DA 7900 & Ulty 6700
12-23: Ulty 12-23....condition of this one looks a little rougher...would be super cheap or maybe free with another cassette
11-25: DA 7900 x 2; 6700 x 3 + Campy Record (NIB)
12-25: DA 7900
11-27: DA 7900--had a few superficial rust marks--this it was put away after getting wet but the profiles all look great
12-27: Ulty 6600
11-28: DA 7900; Ulty 6700 (this one looked a little rough)....also a NIB DA 7900 11-28
11-32: Sram XX
11-36: Sram XX
Also, 2 new (with warranty, I'm a dealer) SRM PC7 head units; one is black with black facing, the other gray with white facing. Retails for $750. Includes the full package (Suunto HRM, SRM speed sensor, bar mount, int'l wall charger, etc.). Asking $450 OBO. Selling on behalf of some customers.
11-21: DA 7900 solid shape, trainer use
12-21: DA 7800 nearly perfect
11-23: DA 7900 & Ulty 6700
12-23: Ulty 12-23....condition of this one looks a little rougher...would be super cheap or maybe free with another cassette
11-25: DA 7900 x 2; 6700 x 3 + Campy Record (NIB)
12-25: DA 7900
11-27: DA 7900--had a few superficial rust marks--this it was put away after getting wet but the profiles all look great
12-27: Ulty 6600
11-28: DA 7900; Ulty 6700 (this one looked a little rough)....also a NIB DA 7900 11-28
11-32: Sram XX
11-36: Sram XX
Also, 2 new (with warranty, I'm a dealer) SRM PC7 head units; one is black with black facing, the other gray with white facing. Retails for $750. Includes the full package (Suunto HRM, SRM speed sensor, bar mount, int'l wall charger, etc.). Asking $450 OBO. Selling on behalf of some customers.
09-13-14, 12:18 PM
#478
Senior Member
yeah that's what I did... just took me awhile to figure out if I wanted EPS or Di2. Logged enough miles on my wifes' bike with 9070 to say ..I really like Di2 just as much and if not more with the sat shifter option vs EPS. Found a ok deal on a sweet Parlee that was ready for Di2.
09-13-14, 01:01 PM
#479
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I have everything except the FD for my 9070 upgrade. I geeked out this afternoon by testing and updating firmware on the bench. The battery is charging now.
09-13-14, 03:42 PM
#480
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I'm deciding whether or not to sell my old bike as a whole, or strip it down and sell it as parts. If it weren't for it the fork issue and scratched up carbon, I'd sell it as whole. May still do that with the and insist the new owner gets the carbon inspected. For all I know it could be a minor fix and last 20 more years. Centaur Group, Easton EA90 Wheels, Toupe Saddle, Origin8 Carbon Seatpost, Pedal Force RS2 Frame 49cm.
Last edited by furiousferret; 09-13-14 at 03:49 PM.
09-13-14, 04:33 PM
#482
Ninny
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I just installed s-works aerofly bars on the tarmac, and took the opportunity to clean up the cables and attach the junction box under the stem. Looks nice and clean!
PS. 7970 connectors do fit through the aerofly routing holes.
PS. 7970 connectors do fit through the aerofly routing holes.
Last edited by globecanvas; 09-13-14 at 04:36 PM.
09-13-14, 05:12 PM
#483
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Wicked clean. Yeah, 7970 wiring is larger than E-tube.
BTW I am back to using latex tubes on my clinchers.
BTW I am back to using latex tubes on my clinchers.
09-13-14, 05:58 PM
#485
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Just got a shipment in from wiggle including a set of Conti 4000s, Vitorria Corsa, and latex.
Ordered before I decided to go tubeless.
Hmmm...
Ordered before I decided to go tubeless.
Hmmm...
09-13-14, 06:19 PM
#486
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I got a new-to-me set of carbon wheels from @shovelhd yesterday and mounted new Michelin Pro4 Endurance tires in 700x25 on them. The wheels are about 22mm outside width. The tires measured 24.6mm when I inflated them, and are a millimeter wider today. I have the same tires on my Open Pro wheelset, and on those 19mm wide rims the P4Es measure right at 27mm after having been mounted a month and a half. Wonder if the tires on the carbon wheels will reach 28mm when they finish stretching...also wondering if that much width might be too much of a good thing for a racing tire.
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Demain, on roule!
Regards,
Chuck
Demain, on roule!
09-13-14, 08:14 PM
#487
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the idea is that with cold hands, thicker gloves, heat of racing it'll be easier to hit either paddle.
just nice to have some options to play around with.
09-13-14, 08:17 PM
#488
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unless you are racing really, really awful roads or are a very big guy, 27s cost you more than you get. it sure is fun to train on tires that measure 27 or 28 at low psi, though. magic carpet.
09-13-14, 10:23 PM
#489
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so, i think the default road settings for di2 are pretty hard to top, but i did a little custom programming with my cross build. since i have no FD, i decided to reprogram both buttons on the right lever to shift to a smaller cog, and both buttons on the left lever will now shift to an easier cog.
the idea is that with cold hands, thicker gloves, heat of racing it'll be easier to hit either paddle.
just nice to have some options to play around with.
the idea is that with cold hands, thicker gloves, heat of racing it'll be easier to hit either paddle.
just nice to have some options to play around with.
09-14-14, 05:04 AM
#490
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aerodynamics take a meaningful hit when you're in that territory; it's noticeable when you ride various tires on the same rim. even 25s (esp front) take an aero hit on rims that are designed for wide tires -- it's just that it is less of a hit than with narrower rims.
unless you are racing really, really awful roads or are a very big guy, 27s cost you more than you get. it sure is fun to train on tires that measure 27 or 28 at low psi, though. magic carpet.
unless you are racing really, really awful roads or are a very big guy, 27s cost you more than you get. it sure is fun to train on tires that measure 27 or 28 at low psi, though. magic carpet.
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Regards,
Chuck
Demain, on roule!
Regards,
Chuck
Demain, on roule!
09-14-14, 10:22 AM
#492
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09-14-14, 05:00 PM
#495
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I've been told I have beady eyes.
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Regards,
Chuck
Demain, on roule!
Regards,
Chuck
Demain, on roule!
09-15-14, 09:16 PM
#497
una carrera contrarreloj
09-16-14, 04:53 AM
#498
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I have them on three wheelsets now - rims are Open Pros (19mm), DT Swiss RR465s (19mm) and PSIMET (22mm). They're just bigger than other 25s. They measured ~27mm on the 19mm rims after a couple of weeks. The ones on the PSIMET rims have only been on for four days, so they haven't finished stretching. DC Rainmaker did a test of 28mm tires for training and included Pro4 Service Course 700x25s, because on the 25mm rims he was using they ended up at 28mm wide.
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Regards,
Chuck
Demain, on roule!
Regards,
Chuck
Demain, on roule!
09-16-14, 05:04 AM
#500
una carrera contrarreloj
Even on my Hed Belgium wheels (23mm wide), the 25mm P4E measures closer to 27-28mm. It's testing the limit of clearance on my 2009 Tarmac Pro.
When #shovelhd had mentioned the bead... I had a strange crash in a race in July. When I picked myself up, part of the bead of the front tire (a 23mm P4E) had come off of the rim -3 to 4 inches of it. I don't know if it was from the crash, or what had actually CAUSED the crash. I was entering a left hand turn, pavement was good, no contact with any rider and BAM crashed and on the ground. Tire was fully aired up.
I suspect the bead came off the wheel and crashed me out.
When #shovelhd had mentioned the bead... I had a strange crash in a race in July. When I picked myself up, part of the bead of the front tire (a 23mm P4E) had come off of the rim -3 to 4 inches of it. I don't know if it was from the crash, or what had actually CAUSED the crash. I was entering a left hand turn, pavement was good, no contact with any rider and BAM crashed and on the ground. Tire was fully aired up.
I suspect the bead came off the wheel and crashed me out.