Other Resources > Component Deals & Selection
Magene P505 PES Base Spider Powermeter
Bigbobby1482:
--- Quote from: SillyMochi on November 10, 2024, 03:26:49 PM ---Anyone know if you can slap the "new" 48/31 GRX820-2 chainrings on this bad boy? Might wanna try it for an upcoming gravel build. According to Shimano they also feature 110/80 BCD, 4 bolt chainrings - so should fit? Or is there any other nuance to it that I overlooked?
https://bike.shimano.com/products/components/pdp.P-FC-RX820-2.html
--- End quote ---
It won't fit the small chainring that grx use, because of 80mm BCD. You need both chainrings to be 110mm.
As I understand it, all chainrings under 34t can't be 110 bcd because of their small diameter. Probably why mtb chainring are usually 104 bcd.
Maybe you could get a 34t and use 48/34 if FD will shift well with that combo.
SillyMochi:
Ah bummer, yeah I see it now. Inner and outer ring have separate mounting ports. Hence the 110/80mm; makes sense now. I searched around a bit and found two manufacturers that actually offer 46/30T 110 BCD options: absoluteblack for an whopping 193€ + shipping and bikinGreen for a more reasonable 94€.
Both use some trickery to bolt the small chainring to the 110 spacing. They look a bit "experimental" but another search showed several posts from happy customers across several biking forums.
Edit: Stone also offers a reasonable 46/32T combo in 110 BCD: https://vi.aliexpress.com/item/1005004259412907.html
00Garza:
--- Quote from: johnnyboy4711 on November 10, 2024, 08:11:57 AM ---same set up here,great job
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Also my setup on my gravel bike. Minimal wear on the chainring after a few thousand miles with a few races thrown in.
ejump0:
today i checked the app(to check batt statu), n theres fw update.
mine was with 0.118.
available update to 0.120
Avalius:
--- Quote from: ejump0 on November 12, 2024, 06:47:56 AM ---today i checked the app(to check batt statu), n theres fw update.
mine was with 0.118.
available update to 0.120
--- End quote ---
Careful with the update, that's the update that made me search for the reset trick on this device. It updated and got stuck ;-) Just a headsup. Reset trick is in the first post :)
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