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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
e*thirteen Helix R 107 BCD 4-Bolt Chainring - 42t, 11/12-Speed, 107BCD, BlackThe e*thirteen Helix R 107BCD Chainring, designed for 4 bolt 107BCD cranks like SRAM Red or Force including power meter equipped cranks, offers a performance upgrade for Gravel and Road cyclists. The 38, 40, and 42 tooth rings pair perfectly with e*thirteens cassettes for more overall range and higher top speeds. Made from durable premium 7075 alloy, they're CNC sculpted for a high stiffness to weight ratio. Compatible with both SRAM and Shimano 11
The e*thirteen Helix R 107BCD Chainring, designed for 4-bolt 107BCD cranks like SRAM Red or Force including power meter equipped cranks, offers a performance upgrade for Gravel and Road cyclists. The 38, 40, and 42 tooth rings pair perfectly with e*thirteen’s cassettes for more overall range and higher top speeds. Made from durable premium 7075 alloy, they're CNC sculpted for a high stiffness-to-weight ratio. Compatible with both SRAM and Shimano 11 and 12-speed drivetrains. Chainline is set by SRAM® Crank assembly.- Compatible with 4-bolt 107 BCD SRAM® cranks and Quarq® power meter cranks
- M4 narrow-wide tooth profile provides Shimano and SRAM 11/12-speed chain compatibility (Including flattop chains), excellent chain retention, and reduced wear
- 4.8mm offset (Chainline is determined by SRAM® Crank assembly, 45mm for normal width cranks, 47.5mm for wide cranks)
- Forged from premium 7075-T7 aluminum, then extensively CNC optimized for light weight, and technical aesthetics
- Durable 7075-T7 construction for long wear-life, stiffness, and strength
Product Specifics
- Ring Position/Type: Chain Retaining Single Ring
- Tooth Count: 42
- Drivetrain Speeds: 11
- Drivetrain Speeds: 12
- Round or Oval: Round
- Chainring BCD: 107
- Material: Aluminum
- Color: Black
- Weight: 81
- Defined Color: Black
Today's Stock Status
5 Available to ship in 2-4 Business Days
UPC: Not available
EAN: 4711280340996
Manufacturer Part Number: CR4HRA-150
CR4212
183057-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
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Product Reviews
★★★★★ 5
Perfect heat tape
Number of Items: 6
This is the only heat resistant tape I'll use - hasn't failed me.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Great for patch hat pressing, no discoloring or marking during transfer
Number of Items: 6
Bought to hold my leather patches down while pressing them to hats, and they work great. They have not left any residue or discoloring when pressing hats, even with white patches. Very happy with how these perform and would recommend to others who make patch hats.
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Reviewed in the United States on January 25, 2026
★★★★★ 5
Great product
Number of Items: 6
This is a perfect tape to use . It holds down the shirts very well.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Great Heat Resistant Tape
Number of Items: 6
My go to heat tape for all of my projects!
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Reviewed in the United States on May 24, 2026
★★★★★ 4
as described
Number of Items: 6
works great.
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Reviewed in the United States on November 7, 2025