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Description
Hope Bosch Gen 4 eBike Chainring - 34t BlueHope Bosch Gen 4 eBike Chainring 34t Blue. The Hope Spiderless Direct Mount eBike chainring for Bosch Performance Line CX Gen 4 eBike motors are specifically designed to withstand the additional rigors of the increased power transmitted by eBike motors. Directly mounts to Bosch Performance Line CX eBike motors and replaces the full spider assembly for a lighter and cleaner looking set up CNC machined from a single piece of 7075 T6 aluminum billet
Hope Bosch Gen 4 eBike Chainring - 34t Blue. The Hope Spiderless Direct Mount eBike chainring for Bosch Performance Line CX Gen 4 eBike motors are specifically designed to withstand the additional rigors of the increased power transmitted by eBike motors.Directly mounts to Bosch Performance Line CX eBike motors and replaces the full spider assembly for a lighter and cleaner looking set- up
CNC machined from a single piece of 7075-T6 aluminum billet these chainrings provide the perfect blend of light weight and strength
Narrow/Wide chainring is designed to retain the chain without the need of a chain device
Designed to give a 52mm chainline to suit 148 Boost Frames
Hard anodized for an ultra-durable finish and increased longevity
- TECH SPECS
| Bosch Drive Unit Compatibility | Performance Line CX |
| Chainring BCD | Direct Mount Bosch |
| Color | Blue |
| Defined Color | Blue |
| Designed for ebike | Yes |
| Direct Mount Type | Direct Mount Bosch Gen 4 |
| Material | Aluminum |
| Ring Position/Type | Chain Retaining Single Ring |
| Round or Oval | Round |
| Tooth Count | 34 |
| keyword search | bosch gen 4 |
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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4.1 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 4
A hit for Border Collies
Color: Blue
Our border collie loves this toy! Keeps him entertained and when he throws it down it doesn't break open. Going strong for a couple days so far.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Durability
Color: Orange
My dog loves it. Its made of material he doesn't destroy easily and he loves to play with it for hours
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Reviewed in the United States on May 19, 2026
★★★★★ 1
Toy destroyed.
Color: Blue
Dog destroyed it the evening we received it. It was a cool toy, though. Too bad it didn’t last longer.
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Reviewed in the United States on March 3, 2026
★★★★★ 5
Best toy every
Color: Orange, Color: Orange
My husky loves it. It's one toy she's not been able to destroy yet. She plays without when she's outside in her lot and will play for an hr at a time. She loves it moves and bounces instead of just tossing it and letting her fetch. The battery life is really good. We charge it about twice a week. It's quiet, so she loves that. It's perfect size for her.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025