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Other Resources => Component Deals & Selection => Topic started by: jakob on April 05, 2024, 09:02:02 AM

Title: Super light Chainring 52, 36 for Dura Ace r9270
Post by: jakob on April 05, 2024, 09:02:02 AM

Hello, im searching for a lighter alternative to the Dura Ace chainringa in 52, 36 that would be awesome didnt find Something really lighter so far.

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: St0mpB0x on April 05, 2024, 08:09:42 PM

I don't think anything lighter really exists.

Cybrei do an alluminium set that is about 25g heavier. They also do a carbon/alluminium set that is about the same weight but probably shifts worse.

Carbon-Ti also do a set which is about the same weight give or take a few grams that'll set you back about 430 EURO.

The construction method of the Dura-Ace chainrings is incredibly light and stiff. It's pretty hard to beat by machining a chainring out of a lump of alluminium like most aftermarket manufacturers.

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: St0mpB0x on April 05, 2024, 08:11:28 PM

If you want to reduce the weight of that part of your bike you are going to need to change the crank arms and not the chainrings.

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: pushpush on April 05, 2024, 09:19:24 PM

I've tried multiple lightweight alternatives including the Rotor rings. I wasnt happy with the performance of any and ultimately went back to Shimano chainrings. The weight savings weren't worth the downsides.

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: toxin on April 06, 2024, 05:22:06 AM

There absolutely are lighter alternatives even on aliexpress, just search "light chainring, but it may come at a significant cost to shifting performance

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: St0mpB0x on April 06, 2024, 07:59:37 PM

Can you share a link to one? I can't find any apart from the Cybrei which might save you 5g.

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: jakob on April 16, 2024, 02:36:42 AM

I found the zrace ones they are cheap and save more then 20 grams but searching Something lighter

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: St0mpB0x on April 16, 2024, 06:19:58 AM

How do the Zrace rings save 20g? Is there a different model I can't find?

Listed Zrace 52/36 weight - 148g
Listed Zrace 50/34 weight - 132g
Zrace Bolts + Cover - 29g

Durace 9200 50T - 107g
Durace 9200 34T - 32g
Durace Chainring Bolts - 6g

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: jakob on April 19, 2024, 04:05:18 AM

Maybe im wrong i thought i checked IT right, thanks for the answer

Title: Re: Super light Chainring 52, 36 for Dura Ace r9270
Post by: coffeebreak on April 19, 2024, 10:58:05 AM

Quote from: St0mpB0x on April 16, 2024, 06:19:58 AM

How do the Zrace rings save 20g? Is there a different model I can't find?

Fwiw I can't find any real lightweight rings on Aliexpress Zrace or others. Even the Cybrei comes up *only* if I specifically mention word Cybrei in search box other wise its just generic chain rings.