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Electric Vehicle

Trek Marlin 7

1 source-linked failure report. Most reported: Structural / mechanical failure. Typical failure around 3.8 yr.

Reliability signal — · Insufficient data · data confidence Very Low

1 confirmed failure reports

Reliability summary

What is likely to go wrong, when it happens, and how expensive it can be — from source-linked failure reports. Counts are reports in our database, not a population failure rate.

Reliability signal

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1 confirmed failure report · Insufficient data · Data confidence: Very Low

Need at least 5 confirmed failure-signal reports before showing an A–F grade.

Most common issue: Structural / mechanical failure
Typical first failure: 3.8 yr; Median of confirmed reports with timing
Median repair cost: —; Reported costs only · market varies
Highest reported repair: —; Not a quote · costs differ by country

What breaks?

Failure types

Click a type in the reports section below to filter.

Structural / mechanical failure1 · 100%

When does it break?

Failure timing

Months after purchase, using reports that included timing.

What does it cost?

Reported repair costs

Distribution of owner-reported repair costs— not a quote or guarantee. Labor and parts prices vary by country.

No reported repair costs yet for this model.

Median months to failure

Failure reports

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Median repair cost

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Still recommend

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% repaired

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% mfr warranty

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% extended warranty

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% support helpful

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What breaks?

What breaks? · reports

Structural / mechanical failure

Bicycles and Accessories, (Excl.mountain or All-terrain) (5040)

46 months

Government / agencyIndexed Oct 18, 2026Source-linkedVerify source — SaferProducts.gov incident

SaferProducts.gov consumer incident report 20210817-4197B-2147361063. Severity: Injury, Emergency Department Treatment Received. Product: Trek Marlin 7 (Trek Marlin 7, black, 29"(?)). Incident: I bought the Trek Marlin 7 in October of 2017 for my son as his 16 years old birthday gift. The bike was purchased from Trek's local retailer "The Bike Lane" and has been regularly maintained by them. My son has been using it for daily commute and weekend recreation. On August 15, 2021, when he was riding the bike on a paved trail uphill, the joint on the pedal crank broke suddenly. His calf was slashed and teared open by the broken joint. We had to send him to a nearby ER, and he received 14 stitches.

UnverifiedEvidence ★★★★☆

View report details

Months until failure

46 months

Repair cost

Not stated

Repaired

Not stated

Manufacturer warranty

Not stated

Extended warranty

Not stated

Support helpful

Not stated

Would recommend

Not stated

AI extraction confidence

90%

Verification status

Unverified

Evidence quality

★★★★☆ (4/5)

Discussion

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