Welding on Big box store bikes?

Birddog1148

Birddog1148

New Member
So I took a used hub in to get it laced onto my Cranbrook rim so I can add disc brakes to the MB. The guy at the shop say welding to a bike is like welding to a spring. How true is that on the cheep bikes like Cranbrook? I am a good welder and have no doubts about my skills, but will I do more harm than good metaurgecly speaking?
 
I am pretty sure Your bike wasnt glued together, it was probabally welded. Im no expert on bikes or welding but I would think if You arent trying anything new or radical I would say you are ok to weld.Just curious what were you trying to weld on ?
Cheers
Chainmaker
 
I need to weld brake caliper mounts to the forks of a new Huffy cranbrook.
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The bike shop guy said welding destroys the heat treat on the bikes.
 
Just my opinion,but I would get a suspension fork with the mounts already on them.I dont say that because of the welding,but because of ride comfort.I may be spoiled but I cant hardly ride a MB without front suspension.
 
dvddtz said:
Just my opinion,but I would get a suspension fork with the mounts already on them.I dont say that because of the welding,but because of ride comfort.I may be spoiled but I cant hardly ride a MB without front suspension.
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Yeah, that's what I'm doin'. Can't handle the bumps. But yer not gonna hurt anything welding those tabs on. Long as you don't blow any holes through the fork.
 
The guy at the bike shop doesn't know what he is talking about. There is no heat treat to the cheap steel tubing they use on dept. store bikes. My only concern would be that you would blow holes in the thin steel tubing, and I mean "thin".

John
 
Are you planning on using wire or stick? I would use wire if possible on the lowest setting. Maybe consider putting the disc and caliper on the left side of the fork. May not make much difference, but the force will pushing against the fork and weld instead of pulling away from it. Should be no problem. I've welded all over my bike frames and never had any bad experiences other than blowing through the frame and having to come back and fill in the hole.
 
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I've never owned a Cranbrook but as far as "big box bikes", if the Target Schwinn Jaguar qualifies, I can assure you that there is absolutely no problems with welding on it. In fact, I was impressed with the clean metal of the frame. I use TIG almost exclusively and TIG welding requires clean metal with no impurities for a good sound weld. I've not encountered any splatter that normally is associated with bad or dirty steel on my Jaguars. I think the bike shop guy you spoke to was full of it...and just wanted to see you buy an overpriced bike shop version of the same bike. If you're experienced with welding you'll have no problems.
Tom
 
Mr. 2door, I met with Ron in Co. today down at the REI flag store, you know, the one down by the Platte? I know this isn't the right thread but I wanted to ask you If we have any sort of rides here. One of the things RIC and I talked about. Just wundrin.
 
ive made my own bikes for tour de fat....i just found mild steel frames to cut up since i dont have a tig or experiance welding cro-mo....just know what your getting in to and remember you can always fill any burn hole and it will be stronger than before....
 
I will be using a MIG. I have been welding for over 20 years, even took a class this year just to get the paper that says I did. I even passed all the test up to the 6G position,
 
I would mount the caliper on the back of the fork leg so the stopping force pushes on the back of the fork instead of trying to tear it off the front of the fork! ;)
 
Provided you can weld (then grind) (then weld some more) (and grind some more) the exact spot and allignment for the caliper and at a perfect 90degree. I thought of doing this but went another direction.
I did investigate a new fork. Found em starting at around $55 for one with brackets for accomodating a caliper. (research type and head sizing etc.)
Might be an "easier" way to go.
But I'm sure you've researched it already yourself. Good Luck.
Robert
 
Birddog1148 said:
I need to weld brake caliper mounts to the forks of a new Huffy cranbrook.
005-3.jpg

The bike shop guy said welding destroys the heat treat on the bikes.
Click to expand...

the bike store guy is full of it, the little brown hands that made your huffy cranbrook did not heat treat it. welding a bracket to that will totally work.

Alternative: If the head tube is 1 1/8 on that bike, id recommend getting a "new" suspension fork with the tabs already mounted. should be able to get one for 25 bucks via craigslist. you also may have to put in bearings for a thread less headset, depending on what you find, but they are much better anyways.shft.
 
Yeah, he must have been thinking about aluminium and aluminium alloy bike frames, in which case he is probably right, but the crannys and Jags are steel and steel takes fine to a weld.
 
Yeah that bike shop guy probaply has never welded before. Ive welded plenty of cheep bikes. Blowing holes is the only concern with any light material. I use a mig usualy with out gas only becuse it belongs to my employer and dont want to waste the exspensive gas.I recently went from a springer front end to a threadless down hill mtb Bomber forks with disc brakes. There was a cool mod i seen where some one drilled two holes in the flat part of the springer and made his own mount for a disk much cooler than the regular forks. makes it look more motorcycle like
 
Skrufrider said:
Yeah that bike shop guy probaply has never welded before. Ive welded plenty of cheep bikes. Blowing holes is the only concern with any light material. I use a mig usualy with out gas only becuse it belongs to my employer and dont want to waste the exspensive gas.I recently went from a springer front end to a threadless down hill mtb Bomber forks with disc brakes. There was a cool mod i seen where some one drilled two holes in the flat part of the springer and made his own mount for a disk much cooler than the regular forks. makes it look more motorcycle like
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Are you talking about this one? If so, thanks! I recently changed to a hydraulic caliper, much better stopping.
 

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Betcha it would be be easier and cheaper to just buy one of these. Disc Brake Bracket .
Note: They only fit 180 mm rotors.​

I have on my springer forks and another on my rear axle. My stretch cruiser frame doesn't have standard axle brackets so I did have to do a little cutting on the frame but was no big deal.

rearbrake.jpg
 
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Maxvision said:
Betcha it would be be easier and cheaper to just buy one of these. Disc Brake Bracket .
Note: They only fit 180 mm rotors.​

I have on my springer forks and another on my rear axle. My stretch cruiser frame doesn't have standard axle brackets so I did have to do a little cutting on the frame but was no big deal.

View attachment 25120
Click to expand...


i was going to post the link... laff

yea if you just wanna make it easy on you, order that adapter and call it a day. brnot
 
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