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Black BB Bottom Bracket Conversion Kit (American to Euro)
Aluminum cups w/ steel hardware
Converting a non-threaded 68mm American BB shell to an English threaded Euro BB bottom bracket
Thanks for your trust and choosing CDHpower.
- CDHpower is registered officially in year 2012 and started business in year 2008. is the original,Reliable,Legal and Honest Company with USA Brand CDHpower supplying many merchandises such as 2 cycle and 4 cycle Bicycle Engine Kit,Spare Parts of gas engine kit including higher performance parts and CNC machined parts, CDH Gas Bike,CDH Bicycle,spare parts of bicycle and some products developed and being developed in China.
- CDHpower is the FIRST CHINESE company engaging in Volume producition on CDH GT gas bikes and CDH gas frame In China!
- CDHpower offers the best selection of gas motor kit, gas bike, gas frame ,bicycles, spare parts and many other products! You'll find an abundance of exciting options to choose, and our checkout process is quick, safe, and secured.
- Your order plcaed today, you'll get your item quickly in 1 to 2 Business Days. We will try our best to save cost for you and offer free or low-cost shipping on nearly every item.
Joseph Buck
Reviewed in the United States on January 8, 2025
👍
Dumpy doo doo
Reviewed in the United States on August 18, 2024
does what it says
Jeff S
Reviewed in the United States on June 7, 2024
Put a square taper in a vintage elf kids bike.Worked great.
Skin of my teeth
Reviewed in the United States on May 15, 2024
Doesn't fit with the cdhpower wide crank
Christian Methot
Reviewed in Canada on January 17, 2023
If you have never installed this, there are tons of DIY videos on YouTube that are really helpful.I'm switching to a 1 piece crankset to a 3 pieces crankset.
joseph
Reviewed in the United States on March 6, 2021
I'm sure ots not a common problem, but the unit I received wasn't machined correctly on one side causing the barring cap to not fit properly. Other than that it seemed well made Whenever I have time to finish the bike I will be back for another.
Cs2CentReview
Reviewed in the United States on July 1, 2020
This was used when I realized that....I didn't know that much about bikes anymore and had purchased the wrong 3-piece crank set. Well the crank set was for a mountain bike and I have a street trike with a standard bottom bracket set. After messing around with a bunch of different cup sets and bearings I found this converter and 15 minutes after taking it out of the box I was riding down the street loving my smooth turning 3-piece sealed-bearing crank set. For my application the bolts were the correct size and there were no issues with installation or pressing them in. I used a wood block and dead-blow hammer to tap them into place then cranked the bolts 1 turn at a time until it was set evenly in the bracket. If this thing catastrophically dismantles itself during use I will updated but it is really just a solid bushing/reducer so I don't expect any failures.
Robert Callahan
Reviewed in the United States on March 1, 2020
First off, I build electric bikes for a living, so when I get an interesting old frame, I want to work with it. I had been doing bottom bracket conversions in the old style IE: cups, bearings and short crank kit. When I looked at this product, I thought "Yeah!" But that was not the case. The inserts are deep, so if the crank stays, seat post or forward frame sticks into the bracket housing after welding, you have to re-shape the new converter. No biggie with a cut-off wheel on your grinder, but don't breath the aluminum dust. The three bolts did not exactly clear all the stuff poking through the inside of the bracket, so a little Dremel work to remove a little steel pipe in the way. As far as the threading of the conversion, it is made for a sealed bearing set witch only depends on one side for support. No problem, just find out which side the new bearing threads into and that becomes the gear side. Using it with old three piece sets I have no idea how the threading would work, but from other reviews, I see that is an issue. Finally, I would, and will buy this conversion for future projects as I now know what it's limitations and installation quirks are. Hope this helps.
vis
Reviewed in Singapore on December 5, 2020
was defective. bent
Giovanni
Reviewed in the United States on September 19, 2018
This is a great conversion kit did exactly what I needed only reason I’m not giving 5 stars is because it fit very snug which made it a little difficult to install but all in all it’s great product I’m very happy with it
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