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  1. #1
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    110BCD chainrings larger than 60T

    I am currently running a 58T Vuelta USA chainring, but my pedaling spins out at 33 mph. I have a 110BCD. Vuelta USA sells a 60T chainring for only $40, but I was thinking of going up to 64-66T.

    I know that tandem bikes use huge chainrings, and I found this page http://trisled.com.au/product-catego...uards-rollers/. They have 65T and 70T in 110BCD (the Aussies call it PCD), but I was hoping to find one for cheaper. I need a flat chainring for my 1X5 setup (as opposed to a ramped and pinned chainring).

    FYI the smallest cog on my 5-speed freewheel has 14T. I don't have the room for a 7-speed freewheel, and 14T was the tallest gearing I could find in a 5-speed freewheel.

    Does anybody know where to find a more affordable 110BCD 62-66T chainring?

  2. #2
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    ROAD tandems use "big" chainrings, but are generally equivalent to road single bikes (53T-ish).

    Mountain tandems (this subforum) use "small" chainrings and generally top out at 42-44T for the big ring.

  3. #3
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    Quote Originally Posted by Okayfine View Post
    ROAD tandems use "big" chainrings, but are generally equivalent to road single bikes (53T-ish).

    Mountain tandems (this subforum) use "small" chainrings and generally top out at 42-44T for the big ring.
    Thanks for the info. I ended up buying two of these 70t Chainring - 110 PCD | Trisled for $225.06 delivered to the USA. I also considered Driveline 68T CNC AL7075 Road Bike Bicycle Chainring 68T, BCD 130mm , Black | eBay and Bikingreen 70T Recumbent Chainring BCD130 CNC 7075 Road Fixie TT Track black | eBay, but apparently nobody makes a 50/130mm BCD spider.

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