![What is the difference between this Shimano BB-UN50 and the BB-UN55 ? The former is hard to find for sale, the latter seems to be found everywhere : r/bikewrench What is the difference between this Shimano BB-UN50 and the BB-UN55 ? The former is hard to find for sale, the latter seems to be found everywhere : r/bikewrench](https://preview.redd.it/0rebayvg94851.jpg?width=640&crop=smart&auto=webp&s=2214088adb5fc8fa4040e00baa4f34208a1f8053)
What is the difference between this Shimano BB-UN50 and the BB-UN55 ? The former is hard to find for sale, the latter seems to be found everywhere : r/bikewrench
![Shimano BB-UN55 kare bozulma pedal yatağı (70 x 122.5-MM İtalyanca) : Amazon.com.tr: Spor ve Outdoor Shimano BB-UN55 kare bozulma pedal yatağı (70 x 122.5-MM İtalyanca) : Amazon.com.tr: Spor ve Outdoor](https://m.media-amazon.com/images/I/51qBBEbRTKL.jpg)
Shimano BB-UN55 kare bozulma pedal yatağı (70 x 122.5-MM İtalyanca) : Amazon.com.tr: Spor ve Outdoor
![Taşıma Shimano bb un55 68/122mm cıvata ile ebbun55b22 novasport uygun seyahat hafif dayanıklı bisiklet aksesuarları güvenilir spor yarışmaları ekipman yedek yedek parça tutar kontrolü azaltır|Alt Braketler| - AliExpress Taşıma Shimano bb un55 68/122mm cıvata ile ebbun55b22 novasport uygun seyahat hafif dayanıklı bisiklet aksesuarları güvenilir spor yarışmaları ekipman yedek yedek parça tutar kontrolü azaltır|Alt Braketler| - AliExpress](https://ae01.alicdn.com/kf/S0f34b51bc446472eaa22dec19d301c7f7/Ta-ma-Shimano-bb-un55-68-122mm-c-vata-ile-ebbun55b22-novasport-uygun-seyahat-hafif-dayan.jpg_Q90.jpg_.webp)
Taşıma Shimano bb un55 68/122mm cıvata ile ebbun55b22 novasport uygun seyahat hafif dayanıklı bisiklet aksesuarları güvenilir spor yarışmaları ekipman yedek yedek parça tutar kontrolü azaltır|Alt Braketler| - AliExpress
![Shimano BB UN55 Bisiklet Bisiklet Kare Alt Braketi 107 127.5mm Mühürlü Kartuş Rulman|Alt Braketler| - AliExpress Shimano BB UN55 Bisiklet Bisiklet Kare Alt Braketi 107 127.5mm Mühürlü Kartuş Rulman|Alt Braketler| - AliExpress](https://ae01.alicdn.com/kf/HTB1nCJlXjLuK1Rjy0Fhq6xpdFXaT/Shimano-BB-UN55-Bisiklet-Bisiklet-Kare-Alt-Braketi-107-127-5mm-M-h-rl-Kartu-Rulman.jpg)