Bigrock Carbon Crank162.5/165/167.5/170/172.5/175 Cycling Parts 354g Bicycle Crankset For BCD 110 Axis 24mm For Sram Cranks

Updated 1 day ago by Stefan W

Reviews & Ratings

dpries of Weight-Weenies in „Road - Weight Weenies" 5 months ago
2025-07-02
Bought on

Received mine, finish is great seems well made and simpler graphics than lots of of the carbon cranks coming from chinese manufacturers. I ordered 167.5mm with discount codes on Aliexpress came out to $238 CAD. Crank arms and spindle weigh 358g. With 3 bolts and spider 406g. Will be pairing with Dura Ace 9100 53-39 chainrings for a total weight of approximately 554g. Photos to come. Question for those who have these already, did anyone have to add the provided shims to ensure the spider bolts were tight?

View original forum comment in Weight-Weenies-Forum:
Road - Weight Weenies → Bigrock RS Crankset 24mm Ti...

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justinfoxphotos of Weight-Weenies in „Road - Weight Weenies" 5 months ago

Installed on a Tarmac SL8. No spacers, re-used the Ultegra chainrings and no adjustment needed at all. Packaging was good, not a fan of the graphics but couldn't bring myself to sand them off (just yet). Carbon weave looks great. Spider is plain and simple and would have been much nicer if it was a decorative spider that matches the look of the Shimano rings. No instructions. I torqued the 3 bolts to 6.5nm. Please let me know if this is too much, or too little, thanks!

View original forum comment in Weight-Weenies-Forum:
Road - Weight Weenies → Bigrock RS Crankset 24mm Ti...

Forum comment in Weight-Weenies-Forum
Tom Bowers Cycling on YouTube 20 days ago
00:16:28
Mentioned at 06:14

The reviewer installs and tests the Bigrock RS carbon crankset from AliExpress as a potential weight-saving and bike-fit upgrade. They compare it to their existing SRAM Red GXP crankset.

AI-Summary

Pros

  • Saves approximately 20 grams compared to the SRAM Red GXP crankset
  • Uses a titanium axle for reduced weight
  • Uses a standard SRAM 3-bolt mounting interface, which is better for 1x setups and chainline adjustment than the hidden bolt design on the old SRAM cranks
  • Full carbon crank arms

Cons

  • The weight saving is described as 'not massively lighter' and 'not groundbreaking'

Key Points

  • Brand is Big Rock (RS)
  • Standard 24mm axle
  • Includes titanium axle and all mounting hardware
  • Weighs 454.7g with spider, chainring, and bolts (compared to 475g for the SRAM setup)
  • Primary motivation for the swap was improved compatibility for 1x setups, not just weight savings

Where to Buy

AFFILIATE by MyBikePartsACTIVE
aliexpress.com
🇩🇪
€234.99
🇬🇧
£206.79
Rating there:
5.0 (25 reviews)
Last checked:
5 months
ago
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