Hope R22 E-Bike Spiderless Retainer Ring for Bosch Gen 4 Systems Chain Retention

The Hope R22 E-Bike Spiderless Retainer Ring is a precision-machined, UK-made chainring retention solution designed specifically for e-bike drivetrains. Available in 34t and 36t, across seven anodised colour options — Blue, Orange, Smoke, Black, Purple, Red, and Silver — and with fitment options for Bosch Gen 4, Bosch Gen 4 55mm Wide, Brose, and Shimano motor systems, this is one of the most versatile and colour-customisable e-bike chainring components on the market.

The spiderless design eliminates the traditional spider interface entirely, resulting in a cleaner, lighter, and more direct chainring mounting solution. This reduces the number of potential failure points in the drivetrain and makes chainring swaps significantly more straightforward. Hope's R22 platform is engineered for the demands of e-bike use — where motor-assisted torque places considerably higher loads on the drivetrain than a standard pedal-powered setup — so durability and secure retention are built into the design from the ground up.

Made in the UK at Hope's Barnoldswick facility, these retainer rings carry the same quality assurance that Hope is renowned for across their entire component range. The anodised finish is not just cosmetic — it provides a hard-wearing surface that resists corrosion and wear in all conditions. Whether you're building a bespoke e-MTB or refreshing an existing drivetrain, the R22 Spiderless Retainer Ring lets you add a genuine splash of Hope colour to your setup. Browse the full Hope components range, our chainrings collection, or explore our wider e-bike spares and accessories for compatible components.

Use the options above to select your preferred tooth count (34t or 36t), colour, and motor fitting before adding to basket. If you're unsure which fitting suits your motor system, contact us and we'll confirm compatibility.

What It's Good For

• E-bike drivetrains running Bosch Gen 4, Bosch Gen 4 55mm Wide, Brose, or Shimano motor systems
• Riders wanting a lightweight, spiderless chainring mounting solution built for e-bike torque loads
• Colour customisation — seven anodised finishes to match or contrast your build
• 34t and 36t tooth count options to suit different gearing preferences and terrain
• UK-made Hope quality with the durability and finish expected from a premium component brand

What It's NOT Good For

• Non-e-bike drivetrains — this is designed specifically for e-bike motor interfaces
• Motor systems not listed — always verify your motor type matches one of the four available fittings before ordering
• Earlier Bosch motor generations (e.g. Gen 2 or Gen 3) — the Gen 4 fitting is specific to that motor platform
• Riders needing a traditional spider-mounted chainring setup

Frequently Asked Questions

Which motor systems does this retainer ring fit?
The Hope R22 Spiderless Retainer Ring is available in four fittings: Bosch Gen 4 (standard), Bosch Gen 4 55mm Wide, Brose, and Shimano. Select the correct fitting for your motor system using the variant options above.

What is the difference between Bosch Gen 4 and Bosch Gen 4 55mm Wide?
The 55mm Wide variant is designed for frames with a wider chainline requirement. If you're unsure which applies to your bike, check your frame or motor documentation, or contact us for guidance.

What tooth counts are available?
The R22 Spiderless Retainer Ring is available in 34t and 36t. A smaller tooth count (34t) generally suits more technical or hilly terrain, while 36t offers a slightly higher top-end speed on flatter ground.

Is this a genuine Hope product made in the UK?
Yes — Hope Technology manufacture their components at their facility in Barnoldswick, Lancashire. The R22 Spiderless Retainer Ring is a genuine Hope product, built to the same exacting standards as their full component range.