E to S Upgrade
The Ochain E to S Upgrade converts an existing Ochain E spider to the S specification. Both are active spiders that let the chainring rotate slightly against the crank, reducing chain feedback and pedal kickback as the suspension moves. The upgrade replaces the fixed internal travel chip with an external adjuster, so the amount of free rotation can be changed by hand.
The kit supplies an External Travel Adjust knob, rack, steel insert, spring, washer, bolts and outboard plate. Once fitted, the dial selects a locked position or 3, 6, 9 and 12 degrees of rearward chainring rotation, letting riders match the setting to terrain. Installation calls for removing the chainring and cover, then extracting the original travel chip.
Quick Facts
| Feature | Specification |
|---|---|
| Compatibility | Current generation Ochain E spiders on Bosch BDU38 (Performance Line CX Gen 5) motors |
| Kit Contents | External Travel Adjust knob, rack, steel insert, spring, washer, bolts, outboard plate |
| Travel Settings | Lock, 3, 6, 9 and 12 degrees |
| Chainring Interface | 104 BCD, chainring and chainring bolts not included |
| Service Interval | Elastomer replacement at 100 hours, full service at 200 hours |
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Product images may vary slightly from final specifications.
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