Yamaha

HR-31-GP

One Piece
Official source link providedPrice basis: RetailerLast checked: Jan 29, 2026

Medium rim configuration provides flexibility for difficult passages with heavy, dark tone.

Specifications

Cup Diameter
17.28mm
16.88mm18.08mm
vs. All Models
43% · Average
Cup Depth
Medium Deep
Cup Shape
combined_UV
Bore Size
4.40mm
3.90mm4.50mm
vs. All Models
48% · Average
Rim Shape
Medium
Recommended For
All AroundVersatile
View on official site

Other Brand Similar Specs

Spec proximity does not guarantee actual feel or tone. Trying before purchase is recommended.
Conn 3Medium Similarity
Cup Diameter: -0.01mmBore: +0.25mmCup shape data unavailable
Specs used: 4 / missing: 1
Breslmair 1E4-SMedium Similarity
Cup Diameter: +0.02mmBore: -0.10mmCup shape data unavailable
Specs used: 4 / missing: 1
Breslmair 2E4-SMedium Similarity
Cup Diameter: +0.02mmBore: -0.10mmCup shape data unavailable
Specs used: 4 / missing: 1
Breslmair 3E4-SMedium Similarity
Cup Diameter: +0.02mmBore: -0.10mmCup shape data unavailable
Specs used: 4 / missing: 1
Giddings & Webster FH-2.5Medium Similarity
Cup Diameter: -0.03mmBore: +0.05mmCup Depth: medium deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Denis Wick 6NLow Similarity
Cup Diameter: -0.03mmBore: +0.10mmCup Depth: medium deep → mediumCup shape differs
Specs used: 5 / missing: 0
Bach 7Low Similarity
Cup Diameter: -0.03mmBore: +0.10mmCup Depth: medium deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Laskey 725GLow Similarity
Cup Diameter: -0.03mmBore: +0.22mmCup Depth: medium deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Schilke 31C2Low Similarity
Cup Diameter: +0.15mmBore: -0.01mmCup shape data unavailable
Specs used: 4 / missing: 1
Giddings & Webster FH-2.75Low Similarity
Cup Diameter: -0.03mmBore: +0.30mmCup Depth: medium deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1

Other Models by Yamaha

HR-29B17.07mm · Deep · 3.90mmHR-30B17.27mm · Deep · 3.90mmHR-31B17.47mm · Deep · 3.90mmHR-32B17.67mm · Deep · 3.90mmHR-34B18.07mm · Deep · 3.90mm

Where to Find

View on Official Siteusa.yamaha.com
Search on GoogleGoogle Search

This site does not sell mouthpieces. Links are provided for reference only. Please verify prices and availability directly with retailers.