What is the most durable and reliable Shimano groupset: Deore, Tiagra, 105, Ultegra or Dura-Ace? - Quora
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New Shimano 105 Di2 goes electronic, 12-speed and doubles in price: so is it still 'the people's groupset'? | Cycling Weekly
![Installing a Shimano 105 RD-R7150 rear derailleur onto a 2019 Checkpoint SL5 and I'm having trouble determining whether or not I need the mounting piece circled. Googling only made me more confused. Installing a Shimano 105 RD-R7150 rear derailleur onto a 2019 Checkpoint SL5 and I'm having trouble determining whether or not I need the mounting piece circled. Googling only made me more confused.](https://external-preview.redd.it/installing-a-shimano-105-rd-r7150-rear-derailleur-onto-a-v0-wzcYiuIY2HFJ-rsyaa6AR6SZhFLviiPYpQ62raxilEg.jpg?auto=webp&s=39cd91ad42644db81fa9202ea6a52371125af8cf)
Installing a Shimano 105 RD-R7150 rear derailleur onto a 2019 Checkpoint SL5 and I'm having trouble determining whether or not I need the mounting piece circled. Googling only made me more confused.
![Amazon.com : SHIMANO FC-M530 Deore Chainring (104x44T 9 Speed) : Bike Chainrings And Accessories : Sports & Outdoors Amazon.com : SHIMANO FC-M530 Deore Chainring (104x44T 9 Speed) : Bike Chainrings And Accessories : Sports & Outdoors](https://m.media-amazon.com/images/I/61MvXQjeAdL._AC_UF1000,1000_QL80_.jpg)