OWNER INTELLIGENCE
Bosch Performance Line SX reliability
1,023
Posts analysed
263
Members in the discussion
The Verdict
Zero confirmed SX drive-unit failures in 1,023 posts over roughly three years: the cleanest hard-failure record on these pages, with the honest caveat that the fleet is young.
What owners actually argue about is character: peak power lives above 100 rpm cadence, the 400 Wh battery is the biggest gripe cluster (45 users), and the freewheel clatters on descents. The one vendor-confirmed hardware fault (the October-2024+ motor-mount bushing revision shared with CX Gen 5) is the thing to check on late-2024/2025 builds.
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- Known issues: 7 clusters with reporter counts, fixes and citations
- The other side of the ledger: trouble-free and high-mileage reports
- Owner FAQ: 5 straight answers
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