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Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
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Description
e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 155mm, with Self Extractor, SilverA high performance, weight optimized alternative to carbon fiber, for riders who prefer alloy cranks. These 24mm ISIS interface cranks are engineered for compatibility with Bosch Gen 4, Brose S Mag, TQ HPR 50, Fazua, Yamaha, Maxon, and Specialized Brose motor systems. They come in short lengths starting at 155mm for improved pedal clearance and are tested to E Enduro standards. Product Specifics Color: Silver Crank Length (mm): 155 Pedal Spindle: 9
A high-performance, weight-optimized alternative to carbon fiber, for riders who prefer alloy cranks. These 24mm ISIS interface cranks are engineered for compatibility with Bosch Gen 4, Brose S Mag, TQ HPR 50, Fazua, Yamaha, Maxon, and Specialized Brose motor systems. They come in short lengths starting at 155mm for improved pedal clearance and are tested to E-Enduro standards.Product Specifics
- Color: Silver
- Crank Length (mm): 155
- Pedal Spindle: 9/16"
- Spindle Interface Type: ISIS
- Designed for ebike: Yes
- Defined Color: Silver
Today's Stock Status
Currently not available
UPC: Not available
EAN: 4711280343768
Manufacturer Part Number: CS4HAA-108
CK1409
183079-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
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Great little shelf unit
Color: White, Size: 9.3 D x 19.5 W x 41.8 H in
Easy to put together by myself. No issues. Took less than an hour to completely assemble. It’s perfect for purpose intended. A top shelf closet organizer for knick knacks and other smaller items.
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Reviewed in the United States on December 31, 2025
★★★★★ 4
Great for classroom organization
Color: White, Size: 9.3 D x 19.5 W x 41.8 H in, Color: White, Size: 9.3 D x 19.5 W x 41.8 H in
These shelves are perfect for organizing my classroom library. The cubes are a little smaller than I expected, so they don’t fit larger picture books well. I was able to make it work by using bins inside the cubes and slanting the bigger books, but just know it’s best for regular-sized books. Since they’re a bit shorter, I stacked two together and it gave me the height I needed.
Overall, they look great, were easy to set up, and hold a lot of books in an organized way. My students can easily find what they need, and I really like the clean, simple style.
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Great for the Price
Color: White, Size: 9.25"D x 19.49"W x 31.5"H, Color: White, Size: 9.25"D x 19.49"W x 31.5"H
I needed a cheap little bookshelf for this small play area. The shelf was relatively easy to assemble by myself, and it's sturdy enough to stand on carpeted flooring. I didn't bother installing the safety wall mount because I live in a rental and I can't screw things into the walls. The bookshelf is too small for standard storage cubes, so I purchased a couple of 9-inch cubes from the Dollar Tree and they fit just fine. I might rearrange the contents later.
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Reviewed in the United States on January 5, 2025
★★★★★ 5
Great shelf
Color: White, Size: 9.3 D x 19.5 W x 41.8 H in
Loved it!
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Storage
Color: Espresso, Size: 9.3 x 19.5 x 41.7 in
Helped with storage with games and movies
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Reviewed in the United States on May 24, 2026