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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
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Description
SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight SteelThe EX1 drive train was designed specifically for the demands of electric assist mountain bikes: a wide gear range with bigger jumps between gears and sturdy components to handle higher torque loads. Liberal use of features found on SRAMs high end MTB parts provide high value, quiet operation and ease of service. X Sync (wide narrow) tooth profiles for great chain management Compatible with Bosch mid drive E bike systems Product Specifics Tooth Count:
The EX1 drive train was designed specifically for the demands of electric-assist mountain bikes: a wide gear range with bigger jumps between gears and sturdy components to handle higher torque loads. Liberal use of features found on SRAM’s high end MTB parts provide high value, quiet operation and ease of service.- X-Sync (wide-narrow) tooth profiles for great chain management
- Compatible with Bosch mid-drive E-bike systems
Product Specifics
- Tooth Count: 18
- Round or Oval: Round
- Drivetrain Speeds: 8
- Drivetrain Speeds: 9
- Drivetrain Speeds: 10
- Drivetrain Speeds: 11
- Direct Mount Type: Direct Mount Bosch Gen 2
- Defined Color: Black
- Ring Position/Type: Chain Retaining Single Ring
- Chainring BCD: Direct Mount Bosch
- Color: Black
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 710845793622
EAN: Not available
Manufacturer Part Number: 00.6218.007.002
GS50617 CK2142 391038-03
156815-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
4.8 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Love Sunbum!!!!
Style: Original
Best combo ever! I use this combo every beach day, and most days in general. I love how well it travels and that there is something for every need! The bag it comes in is such a plus too! Great quality and brand!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 5
Sun Bum Reef friendly get it now!!!!!
Style: Original
I love travel size sun bum sun screen. You need sun screen everyday!!! Sun bum is reef friendly everyone needs to use SUN BUM!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 5
Sun Bum kit a saver!!
Style: Mineral
Great little bag full of sunscreen for my grandson. Glad we had it to take it everywhere with us. A little pricey but he needs it so instead of taking bunches of bottles we had this.
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Reviewed in the United States on May 21, 2026
★★★★★ 4
Sunscreen is great, I would t recommend the chapstick
Style: Original
Sun Bum is hands down the best sunscreen I’ve ever used. It smells incredible, like a tropical vacation with that perfect coconut scent. It goes on smoothly, doesn’t leave you feeling sticky or greasy, and actually works! As long as I reapply every few hours, I don’t get burned, which is more than I can say for most other sunscreens I’ve tried.
The face stick is good, goes on easily, but is a little greasy feeling.
I do not like the chapstick, I can’t keep the taste of it out of my mouth and I feel like you have to put it on again and again.
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Reviewed in the United States on July 15, 2025
★★★★★ 5
Perfect!
Style: Original
Perfect for that carry on to a sunny place!!
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Reviewed in the United States on May 18, 2026