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- USA
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
Race Face Aeffect-R Crank Arms (No BB), 175mm BlackRally rated crankset brings Enduro rated strength at an XC weight Forged 7050 AL construction optimizes stiffness without added weight Boost compatible 24mm EXI spindle Proprietary Cinch system removable spider can convert between existing chainring standards and Direct Mount spiderless rings, and even remain flexible to future developments Choose a spider or use a Race Face Direct Mount Narrow Wide ring (sold separately) *BB sold separately, use RF
- Rally-rated crankset brings Enduro rated strength at an XC weight- Forged 7050 AL construction optimizes stiffness without added weight
- Boost compatible 24mm EXI spindle
- Proprietary Cinch system removable spider can convert between existing chainring standards and Direct Mount spiderless rings, and even remain flexible to future developments
- Choose a spider or use a Race Face Direct Mount Narrow Wide ring (sold separately)
- *BB sold separately, use RF-2925 for English 68/73mm shell
- 632g (32T direct mount alloy, w/o BB)
Today's Stock Status
5 Available to ship in 2-4 Business Days
UPC: 821973354330
EAN: Not available
Manufacturer Part Number: CK20AER137ARM175BLK
RF1584 CK8046
144554-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Fit!
Perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
★★★★★ 1
Stay away
Do not buy these, they will melt.
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Reviewed in the United States on September 9, 2025
★★★★★ 5
Fit very well
Yes
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Reviewed in the United States on December 18, 2025
★★★★★ 4
Fit. With Modification.
I lost one of my housings on the freeway and had a hard time finding the style I had. Different than the standard, but not the Euro ones. Hard to find, at least for me. These were a bit closer to what mine looked like. I had to remove the rubber gasket around the housing to get it to fit (2003 330XI) but it worked like a charm.
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Reviewed in the United States on January 16, 2025
★★★★★ 3
Not a proper fit
Received as promised by the seller.
My cons on this item:
1) the socket holes does not make a tight fit with the light bulb sockets I have. Both issues for left and right. I had to double the o-ring on my light sockets to make it tight fit.
2) The rubbers around the casing was not properly glued in. The rubber sticks out by a few centimeters. Pics attached.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2025
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