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Description
e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t, 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: 40
- Drivetrain Speeds: 11
- Drivetrain Speeds: 12
- Round or Oval: Round
- Chainring BCD: 107
- Material: Aluminum
- Color: Black
- Weight: 74
- Defined Color: Black
Today's Stock Status
UPC: Not available
EAN: 4711280340989
Manufacturer Part Number: CR4HRA-149
CR4211
183056-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
4.3 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
The perfect ball for a small to medium dog.
Style: Ultra, Size: Small (2 Pack)
My dog's favorite ball. Perfect size for playing catch and return for a small dog. She loves to chew on the ball. Very durable she has not been able to shred the ball.
A great entertainment value. This ball does not squeak.
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Reviewed in the United States on February 27, 2026
★★★★★ 5
High quality, dogs love them
Style: Ultra, Size: Medium (1 Pack)
My dogs are obsessed with these balls! We've had them for months and they're still good as new. High quality!
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Great ball!
Color: Ultra, Size: Large
Our puppy loves this ball. It has held up well so far, it’s about 2 weeks now of large breed pup play. It’s been outside for the last week, rain or shine, still in working order. Not as big as I thought it would be though. No squeak, bounces well. Thick rubber like material, that can be depressed when biting down.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Great Quality and durability
Color: Ultra, Size: Large
I have a teething puppy and this is the only ball that has outlasted the rest!! Big chewer and still bounces and no tears! Keeps him entertained for hours!! Sturdy, solid, good quality and value!
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Durable, even for a Great Dane!
Color: Ultra, Size: XXL
I've bought many tennis ball sized ChuckIt balls in the past (for medium sized dogs we've owned), so when we knew we were going to be babysitting our daughter's Great Dane, I bought a bigger one for her. The 4" is perfect for her! She plays catch with it, but also likes to gnaw on it. It holds up great!
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Reviewed in the United States on April 19, 2026