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Reviews over the
4iiii Ultegra R8100 Precision 3+
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1 / 5
Unfortunately unreliable product.
- J.K., 12 September, 2025
Did well for about eight months but then the problems started: regular breakdowns while driving, even in dry weather. Received a new one twice from Mantel under warranty but the same problem again. Kudos to Mantel for its tidy handling. Maybe 4iiii needs to make some improvements.
Pros & Cons
Installation not difficult
Unreliable
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