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What are you doing today(C&V bicycle related)?

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What are you doing today(C&V bicycle related)?

Old 03-08-15, 07:46 AM
  #176  
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Great to meet you.

Looking forward to a ride or two together this summer.

You'll love the bike. It was one of my nicer projects over the last few years. It's an absolute Italian hot rod.

Originally Posted by toavii View Post
Had the pleasure of meeting @gomango yesterday. That's C&V related right? Anyway, great guy. Even greater collection of beautiful art work, or bicycles - whatever you prefer. Thanks again for your time Grady. It was awesome to pick your brain.

Also got to see @sloar's paint work firsthand. Impressive work on an orange Gazelle.


Somehow walked away from Grady's place with this sexy Italian girl (obligatory out of the car and in front of the garage pic):


(sorry for the crummy-over exposed cell phone pic)


While she's certainly beautiful to look at, can't wait for this MN snow/salt to move on and ride!
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Old 03-08-15, 08:15 AM
  #177  
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This weekend is organize the bike room.
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Old 03-08-15, 08:28 AM
  #178  
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Originally Posted by Sir_Name View Post
Speaking of bottom brackets........

I knew something was awry with this - the catalog for the bike ('84 Centurion Pro Tour 15) lists a sealed BB and this one had some play while installed... It's too bad, it's a neat design - sealed bearings + adjustable chainline. I was hoping to reuse it on a current build that will reuse the triple originally installed on the bike / BB (Sugino AT) and which will see lots of dirt, etc.

I have a rough, somewhat embarrassing theory on what may have happened:
I bought the bike from a friend who bought and rebuilt it with full knowledge that it was too big for him. It fit me like a glove and rode beautifully with plenty of utility - I love(d) this bike. Something was up with the BB before my friend bought the bike, as at that point (~2.5yrs ago) the granny gear had already taken a sizable nibble out of the chainstay:



Yes, I risked my luck and rode it like that after removing the small ring. From what I recall, there was no noticeable play in the BB at that time. Or maybe there was, it could help explain future events. Either way, the bike felt great and I kept an eye on it.

Two summers ago a group of friends and I were riding a singletrack shortcut through a nice sizable patch of New England woods following the CT river - a hiking / biking trail connecting two nearby towns. A fantastic ride which the bike handled beautifully.
To a point.
On that ride, the rear derailleur exploded and all of my past sins came to greet me.

While I was walking back up the trail to locate all of the essential small parts (yeah, right...), a friend shortened the chain onto the best gear ratio he could find balancing riding speed with chain tension. It worked well enough and I rode it gingerly, being especially careful over the bumpy stuff.
...until at one point, it stopped working well enough.

I became overconfident in the short-term fix and slowly increased my speed. The chain jumped to a larger cog while pedaling, and as you might guess, things took a turn for the worse. The larger cog used the chain to pull the drive-side of the wheel toward the BB, bending the rear triangle in the process. Language became colorful. We were ~15-20mi from home at that point and still in the woods, so not much choice. We kludged it again and I was EXTRA ginger on things. We eventually got home. I'm guessing I may have over-stressed the BB during that drama-fest as the chain pulled the BB spindle and freewheel toward each other. I think the hairline fracture and other damage below are in-line with this. The shards are sharp and shiny, so it was likely a quick failure, perhaps initiated by some preexisting condition connected to the above chainstay nibble. Or the bike was like this all along (hence above nibble). Either way, here's where we are and I'm, (slightly) smarter for the experience. Note the DS cup contained all of the bearings and most of the carnage until I pulled it. The BB play while installed post-incident was certainly perceptible, but it held its secret well and still spun smoothly.

As I said, I love(d) this bike. It helped me get back into cycling in a more serious way after years of schooling which took up all of my working and free time. A breath of fresh air.

That ride was the last time I rode the bike.

I've been reusing parts here and there on suitable bikes as a way to save money and extend the life of the Centurion. Today I pulled the last part remaining on the frame: the bottom bracket. As I said, I was hoping to transfer both the BB and crank (pulled yesterday) over to a current budget build. For some reason, the DS BB cup was being difficult when I tried removing it yeasterday after pulling the crank arms, so I let some penetrating oil have at the threads over the night and today...in hindsight, I may have deformed the BB shell as part of the above.

Do you think I can reuse this??

Sealed:


Not sealed:








Interestingly, the BB / crank arm retention bolts are Campagnolo and in great condition, so that's nice.

Always get a peer check on field repairs, boys and girls...

BTW, can anyone ID this BB? It's English / I.S.O. Despite the above (which I chalk up to user error) I would like to source another for my current build. I haven't fully cleaned it, but have not yet found any brand markings. The '84 Centurion catalog only lists "Performance sealed bottom bracket". Sheldon's BB chart does not list this BB for the crankset. I'll keep searching, but will take the appropriate measurements and replace with something else if need be.


So it goes.
That bottom bracket is shrapnel. Measure the overall length and from the ends to what was the center of the cartridge and look around. From the stay damage, were you running a triple? If so, and maybe otherwise some additional length on the drive side looks necessary.
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Old 03-08-15, 08:47 AM
  #179  
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Originally Posted by gomango View Post
Great to meet you.

Looking forward to a ride or two together this summer.

You'll love the bike. It was one of my nicer projects over the last few years. It's an absolute Italian hot rod.
Hoping to get out a little bit here in the next few days to get a feel of it. The few people who have taken a look were very impressed with your build. It looks great but it also looks like it's begging for some fun...

I'll make sure to keep an eye out for one of your group rides.
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Old 03-08-15, 09:32 AM
  #180  
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I took an impromptu trip to Paso Robles, and I'm going to give the Eroica CA ride a trial run. I drove a bit of the course last night when I got in, and some of the routes went through gated estates. Hopefully they'll be open or I'll be able to talk my way through. Post ride report later this evening.



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Old 03-08-15, 02:05 PM
  #181  
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20-miler on the Colnago, with my regular riding buddies. We're all equally out of shape it seems!

Riding their contemporary bikes, they marvel at the DT shifters.
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Old 03-08-15, 04:59 PM
  #182  
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Originally Posted by repechage View Post
That bottom bracket is shrapnel. Measure the overall length and from the ends to what was the center of the cartridge and look around. From the stay damage, were you running a triple? If so, and maybe otherwise some additional length on the drive side looks necessary.
Thanks for the feedback. Yes, the BB is at best an interesting paperweight.





Re stay damage: when the bike came to my friend the pictured damage was already done. The bike came in with all three chainrings installed installed on the triple - the granny was removed as a part of his rebuild before he sold the bike to me. As I think about it more, the fact that the small ring shows damage that is uneven circumferentially would support the BB being...compromised before my friend and I came into the bike; the play in the BB allowing chainring rub during the NDS power stroke.

Either way, I gave it a heck of a twist during the aforementioned incident, perhaps turning bad to worse. I'd say the ultimate failure was initiated by a local failure at the above bearing race in the sleeve.

I was hoping to reuse the spindle, and it turns out I have a pretty decent set of Sugino cups and bearings in a box here. Unfortunately, the original spindle will not work with typical BB cups due to the lack of a 'cone' (i.e. bearing race lip).


The search begins. Thanks again.

Edit: When the bike was reassembled, the BB was pushed as far to the DS as possible, not sure where it was originally.

Last edited by Sir_Name; 03-08-15 at 05:12 PM.
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Old 03-08-15, 05:07 PM
  #183  
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For reference, the 'other' side:
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Old 03-08-15, 08:06 PM
  #184  
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Went to The Bicycle Stand in Long Beach, CA today for the first time. Worth the drive, lots of goodies on the floor, walls, and ceiling. Trying them for a wheel build for the Wizard on the recommendation of a friend.

Then went back to work on the 75 Paramount for my better half. Brakes dialed in, or at least close-new hoods, cables, and housing. Started on shift cables and came to a screeching halt when I found that the previous owner(s) had stripped the cable tension screw hole in the FD. That sent me back to gardening (and a beer).
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Old 03-09-15, 11:33 AM
  #185  
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Mourning my bank account.
Cleaning and re-packing a pair of high-flange Normandy/Weinman wheels for the Motobecane build I'm starting in the morning.
Finishing the brake lever switch on a Univega Super Strada sitting on the trainer, with new bar tape to follow.
Watching snow start to melt.

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Old 03-09-15, 03:07 PM
  #186  
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Waiting on my Dad to pick up six vintage bikes for me back home for $100...can't wait to get them! One looks to be a '72 Schwinn Continental and another is a Raleigh Pursuit 502.
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Old 03-09-15, 07:04 PM
  #187  
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After riding it over a couple of winters as a foul weather bike, I blew it apart last night and started on a fairly thorough overhaul. Going to leave the fenders off for awhile and enjoy some dry rides on it this year.



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Old 03-09-15, 07:43 PM
  #188  
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I'm trying my hand at polishing components, for the first time. And thoroughly cleaning my bikes, with the hope that it will become a habit.
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Old 03-09-15, 07:54 PM
  #189  
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Reorganizing entire basement, 30% is C&V. Should take a week, way too much detritus down there.
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Old 03-16-15, 08:05 PM
  #190  
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Both pics are in color; neat contrast next to each-other.

If anyone has a skewer correct for a 5** rear hub in 126...
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Old 04-10-15, 10:56 PM
  #191  
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26" mock-up. Final wheel size will be a touch larger...

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Old 04-11-15, 07:10 AM
  #192  
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I am walking briskly & maybe throw in some running for 6 miles with a large group of people at 8:00 a.m. Portland waterfront! I know, you might ask yourself, "What does walking have to do with anything?" How on earth is that "Classic & Vintage"?

I'm vintage. There's that. Plus it's cross training for when I ride old vintage bikes. I made my first ever "parts bin" bike - A 1983 Miyata Mixte. I've never been able to do that because I don't really have much of a parts collection, but this time I did. So I bought frame/fork/headset from a person who used it as their daily commuter. The paint is trashed, but it is functional, and I'm trying a 19.5" for the first time. My others are 21" mixtes, so we'll see.

Anyway I will ride that bike later on today so that's my C & V activity.
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Old 04-11-15, 07:36 AM
  #193  
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Just getting ready to go look at an old Marinoni, and old Trek 5900 and a bunch of related bicycle parts, clothing and accessories. This might prove to be an N+2 day...
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Old 04-11-15, 07:39 AM
  #194  
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Going to look at a bike and a Campy tool stash this afternoon.
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Old 04-11-15, 07:56 AM
  #195  
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Bike marshaling today on a 10K for the Wounded Warrior Semper Fi organization. Using my 85 Raleigh Marathon SS for the course.

Finished with no problems for the hand cyclist. Great bunch and strong willed.
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Old 04-11-15, 10:18 AM
  #196  
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This morning started throwing together a couple of parts bin builds to get the heap down. I'll finish them later. Very shortly I have another C&V mission, although not bikes. I am going to pick up a bunch of antique funeral home items, a cooling table, urns, tools and hopefully a lot of other stuff
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Old 04-11-15, 12:33 PM
  #197  
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^ [/big sigh of relief]

Geez, what a project. Maybe now I will be inspired to drill out the broken drop out screw on my slightly less gritty Grandis

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Old 04-11-15, 12:38 PM
  #198  
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Replace a sticking chain link.

Glue 4 tires.
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Old 04-11-15, 01:01 PM
  #199  
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Originally Posted by Chuckk View Post
One of mine is snapped off flush on both ends, the other is stuck. I'll stand the frame up in two little cups of penetrating oil tonight.
I did the penetrating oil for a couple of weeks prior to attempted removal. Next comes the small punch + reverse drill and hope I don't mess up the threads too much going in. Fingers crossed.
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Old 04-11-15, 05:22 PM
  #200  
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Originally Posted by Chuckk View Post
One of mine is snapped off flush on both ends, the other is stuck. I'll stand the frame up in two little cups of penetrating oil tonight.
Is it possible to drill those out ? I have an 89 Trek 400 I need to work on back there. One did not cooperate for a PO and snapped off almost flush.

What at set up do you use, vice,drill,steady hand ?
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