Lightweight, exact dimensions, easy to install.
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Its a fantastic idea to be able convert a US bottom bracket to a Euro version with threads. It means that you can use lighter and cheaper cranks and pedals too. This, with a new Truvativ crank set reduced the overall bike weight by 1KG. However it did require about 4-5 hours of filing to get it to fit the Bike frame bottom bracket. The cups stopped on the internal stepped ridge inside the bottom bracket, before they were fully home. After the modifications to fit the Bottom Bracket they worked really well. So make sure the internal step/ridge on your particular US Bottom bracket is far enough inside the BB, else you will be modifying the adapters too.
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Is was a bit thigh to fit one of the adapters but overhaul its a good piece of kit at a sensible price. It solve my problem and now I have a entrey level bmx with a sealed boottom bracket :)
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👍🏻
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Habe einen coolen Rahmen bekommen der allerdings mit angeblich "Euro BB" ausgestattet war. Musste lange recherchieren und war mir bei der Bestellung am Ende noch immer unsicher ob dieser der richtige ist. Hat jedoch bestens gepasst. Der Adapter muss wirklich mit viel Kraft eingefügt werden. Ich empfehle Schraubzwingen zu verwenden. Am Ende werden beide Seiten gegeneinander verschraubt um sicheren Halt zu gewährleisten. Ich habe trotzdem Buchsenkleber verwendet, um wirklich keine Gefahr einzugehen!
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Arrived 3 weeks early.
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Muy buen producto, fácil de instalar, buena calidad y ensamble perfecto. Muy recomendable.
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I saw a tutorial video of a guy using this bottom bracket adaptor in a vintage Schwinn road bike. He removed the one piece crankset and original bearing cups, slid this adaptor in the bottom bracket shell and tightened the bolts. Worked perfect. So I purchased one to use on an old Sears Free Spirit I am restoring. Out of the box it looked to be a nicely built product. When I removed the bearing cups from the frame I was restoring, I noticed the bottom bracket shell was not a piece of tubing, but a piece of flat steel rolled into a circle. Well, sort of a circle. I'm sure when the bike was built in 1973 it was a lower quality frame. So the bottom bracket shell was not cut from a piece of tubing like most bikes. They had rolled flat stock into a circle, then added another thicker piece of flat stock to the inner diameter to add strength. It wasn't perfectly round, and the additional piece inside was thick and not very round at all. When I tried to test fit the BB adaptor, it did not fit at all. Long story short, it took days of grinding, turning parts in a lathe, grinding more, cutting and generally trying everything possible to get the adaptor to fit the frame. Finally got it but it was not at all easy or pretty. None of this was the fault of the adaptor! The adaptor is nice and very well designed. All the installation issues were because of the method used when the frame was built. The reason I'm even writing this review is to give another person hoping to just slide it in the BB shell and tighten the bolts a heads up. The online videos are great, but depending on the frame you might be in for a serious challenge.
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Quello che cercavo
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