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-   -   Ultimate Bike Thread.... (http://forums.pelicanparts.com/showthread.php?t=720544)

greglepore 07-28-2023 01:56 PM

Quote:

Originally Posted by LEAKYSEALS951 (Post 12048986)
Carbon Fiber update 7/20/23.
Carbon on. This stuff lays finicky as all getout. Not as sexy as I intended with carbon fiber weave orientation, but I realized this is tricky territory. The CF immediately starts to separate. Needs to be canted against itself for strength and not to fall apart on the spot. I am not a carbon fiber expert. This does not behave like your father's fiberglass. I am abandoning any future submarine projects. I should have watched youtube videos before starting. I should have had a way to compress the CF against the frame. But- this is not really structural, it's more protection. Assuming the epoxy dries (it's slowly getting tacky- so hopeful...) I will sand this flush and be done with it. It does barely pass muster with my "looks good enough to post to ppot" criteria, although I am not happy with the lay of the weave across the bb. At that point, it was a matter of survival, not being sexy.:D I do think the final sanded portion will provide some meat for future chain drops and give me confidence to bomb doubletrack. That's about 3 layers thick at the areas trashed by chainsuck.

To compress the cf, lay it on and while wet wrap the area as tightly as possible with blue masking tape. Really. It'll provide compression and comes off easily, more or less, after the resin cures.

CurtEgerer 07-28-2023 02:12 PM

Nice lug work on the bamboo frame :D

CurtEgerer 07-28-2023 02:15 PM

Byron - brother picked this up yesterday at garage sale for $5. Any info???

http://forums.pelicanparts.com/uploa...1690578882.jpg

LEAKYSEALS951 07-28-2023 03:27 PM

Quote:

Originally Posted by greglepore (Post 12055097)
To compress the cf, lay it on and while wet wrap the area as tightly as possible with blue masking tape. Really. It'll provide compression and comes off easily, more or less, after the resin cures.

Thanks Greg!
I was also watching some videos on using heat shrink tape. In the end, I wussed out because I was having a hard enough time aligning the cf over the convex shapes of the bb, and, after all, I was really looking for sacrificial layer to protect the factory weave- but next time, I'm going to spend more time looking into compressing the patch. I did sand it out and it looked semi good, and left it naked, shot a layer of clear, mounted the cranks and motored on. Will be hitting "lost river" gravel ride next weekend in WV.

Went for a nice ride today. 99 degrees hot. FACTOID- Not so hot when you don't take any data devices with a thermometer to psyche you out! :D Take a crapload of water and ignore any thermometers.

LEAKYSEALS951 07-28-2023 03:31 PM

Quote:

Originally Posted by CurtEgerer (Post 12055102)
Nice lug work on the bamboo frame :D

Yeah, that frame is a trip. What exactly is that exotic lug wrapping material? :)

LEAKYSEALS951 07-28-2023 03:40 PM

Hey Byron, when I see this 82' Bandito frame I think of you- check out the dual rear dropouts. I'm liking the comp II's myself! Lot's of goodness here!

http://forums.pelicanparts.com/uploa...1690584000.jpg

CurtEgerer 07-28-2023 03:43 PM

^^^^ I've only seen the pic, but it looks like duct tape to me! :)

sc_rufctr 07-28-2023 03:50 PM

Quote:

Originally Posted by LEAKYSEALS951 (Post 12055134)
Yeah, that frame is a trip. What exactly is that exotic lug wrapping material? :)

I'm guessing but that looks like self-amalgamating tape (typically silicone based).

LEAKYSEALS951 07-28-2023 04:07 PM

Quote:

Originally Posted by sc_rufctr (Post 12055148)
I'm guessing but that looks like self-amalgamating tape (typically silicone based).

Naturally, it would have to be a very high caliber tape to harness the power of those clipless pedals!

Random (when grams don't matter) gratuitous leather pic- Recovered the seat, wrapped the grips- BUT- slowly replacing the brake line holders from zip ties to leather. Front- leather cord- rear- leather excess from seat recover. More HF zip ties to be cut coming soon..... :)

http://forums.pelicanparts.com/uploa...1690585303.JPG

LEAKYSEALS951 07-28-2023 04:28 PM

Good enough for government work :)
(I spend all day having to be 'perfect' so it's fun to let loose after hours....)
The disc conversion scald marks match the pannier bags.
She's solid as a rock. Next time I will make with a smaller diameter reinforcement and bend it purdy.
http://forums.pelicanparts.com/uploa...1690586846.JPG

CurtEgerer 07-29-2023 04:16 AM

Quote:

Originally Posted by LEAKYSEALS951 (Post 12055154)
Naturally, it would have to be a very high caliber tape to harness the power of those clipless pedals!

Random (when grams don't matter) gratuitous leather pic- Recovered the seat, wrapped the grips- BUT- slowly replacing the brake line holders from zip ties to leather. Front- leather cord- rear- leather excess from seat recover. More HF zip ties to be cut coming soon..... :)

http://forums.pelicanparts.com/uploa...1690585303.JPG

I'm interested to learn how you recovered the saddle, specifically how the leather is attached underneath. Is it simply glued top and bottom? What kind of glue? Looks like it came out nice.

CurtEgerer 07-29-2023 04:26 AM

Looked at this yesterday. Claimed to be the guy's mother's Schwinn she bought new in the 1940s. $125, but half-off today. If it were a men's I'd bought it yesterday. I know I could part it out and make some money but not sure I want the hassle. The springer fork is missing the supports, otherwise I'd buy it for that and use the fork on my rat bike.



http://forums.pelicanparts.com/uploa...1690629946.jpg

LEAKYSEALS951 07-29-2023 04:58 AM

Quote:

Originally Posted by CurtEgerer (Post 12055339)
I'm interested to learn how you recovered the saddle, specifically how the leather is attached underneath. Is it simply glued top and bottom? What kind of glue? Looks like it came out nice.

Thanks- this was a good case of "do as I say, not as I do"
It was a learning process. What I did wrong- use too thick of leather pieces. I was using 2mm thick pieces (approx 5 ounce weight when ordering) - too thick. What I should have used was 1mm thick leather- approximately 2.5 ounce weight leather. I would probably buy some 2 oz. and a 3oz. swatches to see what works best if 2.5 cannot be found.

Because the leather was so thick, I made a mold to compress the top against the seat. The first seat I recovered, I clamped around the edges, which worked, but you can still see the clamp marks. The mold avoids that, but I bet with 1mm thick leather, one wouldn't even need the mold, just stretch and adhere. Once dry, I went back and wrapped the leather around the edges, using exacto knife to cut out excess and adhered underneath.

Adhesive- water proof gorilla glue did not hold up in wet conditions. I went to loctite vinyl/leather/plastic and fabric, which had so far held up. I would research a 3m adhesive (leather to plastic) if I did it again. The first seat I recovered, I stripped the entire old cover/padding off. It was leather to plastic. The second seat, I just recovered over the old leather- leather to leather.

Now that I've done it , I will probably never buy a new seat again. The closest sella leather seat I can find is about $130-$160, and I can recover it much cheaper and get a better leather match to what I want.
Again- the key is a thinner leather. The original sella italia slr leather is about 1mm thick.

http://forums.pelicanparts.com/uploa...1690631195.JPG
http://forums.pelicanparts.com/uploa...1690631195.JPG
first seat- leather to plastic base. Looks way better in person. This pic looks like a big schlong.
http://forums.pelicanparts.com/uploa...1690631195.JPG

LEAKYSEALS951 07-29-2023 05:21 AM

Here's a pic of the second seat- adhering the leather to the original padded leather base gives it a much smoother appearance. It was raining in the pic. The plastic base molding imperfections don't show through as much, and it's more comfy. Using a thinner leather (in the future) would let me tuck it up under/around the edges cleaner too. Here you can sorta see where the thick leather didn't quite cooperate at the rear edges.

http://forums.pelicanparts.com/uploa...1690633095.JPG

greglepore 07-29-2023 05:39 AM

Those seats are cool. I did a couple a few years back, and believe it or not, vittoria tubular glue works great as a contact adhesive. Weldwood would also likely work.

rockfan4 07-29-2023 08:07 AM

Quote:

Originally Posted by rockfan4 (Post 11650600)
Spring. When an old man's mind turns to BICYCLES!

I think I want to find an old Schwinn.
My first bike was a 26" Schwinn. I couldn't straddle the frame and touch the ground, but I could get on it from the back step of the house, and ride it around the house. I eventually got a 20" Schwinn, then a fastback 5 speed, but I think I'd like to find another 26", because I'd just look silly riding a 20" bike. Mine looked a lot like this one, except it had a chainguard.

http://forums.pelicanparts.com/uploa...1648602889.jpg

I remember no fenders, I don't remember if my dad got it with dented up fenders and removed them, or if it came without fenders. It certainly wasn't new, it probably came from an auction.

Looking on Craigslist and Facebook Marketplace, there seems to be a lot of women's bikes, and very few men's bikes. I don't know if the other boys were like me and ended up destroying them, or what, but there isn't many out there. Maybe when it gets warmer more will show up.

Lots of men's bikes have bent forks. The one above might even be bent a bit.

16 months later, I finally bought one. Actually bought two. The boy's bike has a 2 speed hub. Not all the parts are correct, but I wanted one to ride, not admire. Let's see if I can get the wife on the other one. I failed the last time. Anyone want to buy a Gary Fisher Supercaliber? I was hoping she would end up looking more like Paola Pezzo, but that didn't happen.

http://forums.pelicanparts.com/uploa...1690643022.jpg

CurtEgerer 07-29-2023 01:54 PM

^^^ Nice. I totally forgot about 2-speed hubs. How do they shift again? Do you push back on the coaster brake or something?

Racerbvd 07-30-2023 08:51 AM

Quote:

Originally Posted by CurtEgerer (Post 12055735)
^^^ Nice. I totally forgot about 2-speed hubs. How do they shift again? Do you push back on the coaster brake or something?

Yes sir, Bendix 2 speed "Kick Back ", I'd love to get one for the 49 Cycle Truck.

CurtEgerer 07-30-2023 12:29 PM

^^^ I seem to recall a lot of the Schwinn Tandems had the 2-speed hub.

I mounted the shifter on my rat bike on the seat stay. I wanted to keep the handlebars clean with no levers, cables, etc. This is a push-pull Shimano hub with hard wire instead of a cable and spring. Problem: The cable housing has fixed molded-in ends, so is a fixed length. I cut the housing down and found a piece of SS tube with a 4.5mm ID to slide the 2 pieces of housing snugly into and butt together.

http://forums.pelicanparts.com/uploa...1690745234.jpg

CurtEgerer 07-30-2023 12:31 PM

Working on the graphics for the race plate as we speak.

http://forums.pelicanparts.com/uploa...1690745491.jpg


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