3pcs Guitar Neck Shims Shim Made of Canada Solid Maple Wooden, For Bolt-on Neck Bolts, Shaped 0.25 0.5 1 Degree (0.25 0.5 1 Degree)

3pcs Guitar Neck Shims Shim Made of Canada Solid Maple Wooden, For Bolt-on Neck Bolts, Shaped 0.25 0.5 1 Degree (0.25 0.5 1 Degree)

ASIN: B0BMGQYF4Q
Analysis Date: Feb 5, 2026 (re-analyzed Feb 5, 2026)

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Review Analysis Results

B
Authenticity Grade
10.00%
Fake Reviews
4.67
Original Rating
4.40
Adjusted Rating

Analysis Summary

The overwhelming majority of these reviews appear genuine, with only one showing potential manipulation patterns. All reviews are verified purchases (indicated by '|V|'), which significantly increases their authenticity likelihood. The reviews demonstrate specific, technical knowledge about guitar setup and neck shims, with users sharing detailed personal experiences that would be difficult to fabricate convincingly. High ratings for a specialized product that apparently works well are completely normal and expected.

Multiple reviews show strong genuine indicators through personal context and specific technical details. Review #1 describes using the shims on a "cheap Squier teles sold on Amazon that my son's buddy got" and mentions solving "sitar string noise" - a very specific problem. Review #2 provides a detailed comparison with the Stew Mac version, complete with photo references and fit analysis. Review #4 offers nuanced technical advice about shim placement affecting high-end frequencies, demonstrating genuine product knowledge. Review #7 gives a balanced 3-star rating with specific criticism about screw hole alignment on a Glarry guitar.

The only concerning review is #6, which consists of just two generic sentences: "Good quality and the kit comes in a nice metal case. I am satisfied with this product." This lacks the specific personal context found in other reviews and uses generic satisfaction language. However, even this review mentions the metal case detail that appears in other reviews, suggesting it could simply be from a less verbose but genuine user.

Overall, this appears to be a legitimate product receiving genuine positive feedback from knowledgeable guitar enthusiasts. The single potentially suspicious review represents only 11% of the sample, and even that is borderline rather than clearly fake. The detailed technical discussions, specific use cases, and balanced perspectives across multiple reviews strongly indicate authentic user experiences rather than coordinated manipulation.

Key patterns identified in the review analysis include: Verified purchases only, Technical guitar setup terminology, Specific brand/model references.

Review Statistics

726
Total Reviews on Amazon
-0.27
Rating Difference
Editor's Analysis

Choosing the Right Maple Neck Shims for Precise Bolt-on Guitar Adjustments

These Canadian solid maple shims offer a professional solution for adjusting neck angle on bolt-on guitars, specifically designed with three precise angles (0.25°, 0.5°, and 1°) to address different setup requirements. Unlike generic plastic or cardboard alternatives, these wooden shims provide stable, non-compressible support that maintains your guitar's structural integrity during seasonal changes.

Key Considerations Before Buying

  • The 0.25° shim is ideal for minor action adjustments without significantly altering string tension or break angle, perfect for players seeking subtle improvements to playability.
  • The 1° shim addresses more significant neck angle issues, often needed when converting to heavier string gauges or correcting pronounced relief problems in older instruments.
  • Maple's density and grain structure make these shims particularly suitable for high-tension setups, as they won't compress under string pressure like softer materials might.

What Our Analysts Recommend

Quality maple shims should feature clean, consistent grain without knots or irregularities that could create weak points. The angled surfaces must be precisely milled to ensure proper contact with both neck pocket and neck heel, preventing rocking or uneven pressure distribution that could affect sustain and tuning stability.

Tools Market Context

Market Overview

The guitar neck shim market has shifted toward specialized wooden options as players recognize the limitations of makeshift solutions like business cards or plastic strips. Premium maple shims now compete with traditional brass and steel alternatives, offering a balance of durability and tonal characteristics that complement wooden guitar components.

Common Issues

Many generic shims lack precise angle specifications, forcing players to stack multiple pieces and creating potential instability points. Inconsistent thickness across the shim surface can cause uneven neck seating, leading to buzzing, intonation problems, or reduced sustain that defeats the purpose of the adjustment.

Quality Indicators

Look for shims with clearly labeled angles, consistent wood density, and smooth, sanded edges that won't damage neck pocket finishes. Premium options like these Canadian maple shims typically feature laser-cut precision and come in graduated sets that allow progressive adjustment without trial-and-error stacking.

Review Authenticity Insights

Grade B Interpretation

The Grade B authenticity rating with 10% estimated fake reviews indicates generally reliable feedback, though shoppers should remain discerning about overly enthusiastic claims. The 4.40 adjusted rating (down from 4.67) suggests some review inflation but still reflects strong genuine satisfaction.

Trust Recommendation

Focus on reviews that mention specific installation experiences, such as which angle worked for particular guitar models or how the maple material affected their setup process. Verified purchase reviews discussing technical aspects like neck pocket fit or long-term stability carry more weight than generic praise.

Tips for Reading Reviews

Prioritize reviews that reference using multiple angles from the set or compare these maple shims to other materials they've tried. Look for discussions about seasonal stability—a key advantage of solid wood shims—and how the specific angles addressed particular action or intonation issues.

Expert Perspective

This three-angle maple shim set represents a professional-grade solution for serious players and technicians, with the material choice and precision angles addressing common shortcomings in the accessory category. The strong adjusted rating of 4.40/5 from verified purchasers suggests these shims deliver on their specific promises for bolt-on neck adjustments. The inclusion of three distinct angles provides flexibility that single-angle shims lack, allowing users to fine-tune their approach rather than making compromises.

Purchase Considerations

Consider whether your guitar truly needs neck angle adjustment—common indicators include high action that won't lower with saddle adjustments, or strings that feel stiff despite proper relief. These maple shims are particularly valuable for players who make seasonal string gauge changes or own multiple guitars with different setup requirements.

Comparing Alternatives

Compare these wooden shims against brass or phenolic options, considering how each material might interact with your specific guitar's neck pocket and affect resonance transfer.

Price Analysis

This is a well-reviewed, niche guitar accessory with pricing typical for quality maple shims. Given the high rating and specific use case, it represents a reasonable purchase in the mid-range segment. Check multiple sellers for the best current price and ensure the seller has positive feedback for musical instrument parts.

MSRP Assessment

Estimated MSRP: Unknown
Source: Unable to determine
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range
Alternatives Range: $12-$25
Value: Offers good value with three precision maple shims at a competitive price point compared to single-shim alternatives.

Buying Tips

Best Time to Buy: No strong seasonal pattern; monitor around major holidays for potential promotions.
Deal Indicators: Price drops below $15, bundled with guitar tools, or free shipping offers.
Watch For: Watch for inflated 'list prices' on Amazon; verify seller reputation for specialty guitar parts.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Feb 5, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (4.40 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.67 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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