2023 Rocky Mountain Element C50 vs 2025 Kona Hei Hei
The S is the Kona Hei Hei size closest to your XS Rocky Mountain Element C50. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Kona Hei Hei
Compared with the Rocky Mountain Element C50 in XS, the Kona Hei Hei in S places the top of the head tube 45 mm higher and 27 mm further forward, relative to the bottom bracket. Its wheelbase is 36 mm longer, which can contribute to stability at speed.
- Frame stack
- +45 mm
- Higher front end
- Frame reach
- +27 mm
- Longer frame reach
- Wheelbase
- +36 mm
- Longer: steadier at speed
- Head angle
- +1.3°
- Steeper: sharper steering
- Chainstays
- +9 mm
- Longer: more planted
The two frames
Rocky Mountain Element C50, XSKona Hei Hei, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Rocky Mountain Element C50 XS | Kona Hei Hei S | Difference |
|---|---|---|---|
| Reach | 397 | 424 | +27 mm |
| Stack | 561 | 606 | +45 mm |
| Head tube angle | 64.7 | 66 | +1.3° |
| Seat tube angle | 75.7 | 76.1 | +0.4° |
| Effective top tube | 542 | 575 | +33 mm |
| Chainstay length | 426 | 435 | +9 mm |
| Wheelbase | 1127 | 1163 | +36 mm |
| BB drop | 19 | 31 | +12 mm |
| Standover | 769 | 752 | −17 mm |
| Seat tube length | 355 | 380 | +25 mm |
| Head tube length | 90 | 105 | +15 mm |
| BB height | not listed | 341 |
Differences are the Kona Hei Hei minus the Rocky Mountain Element C50. Full charts: 2023 Rocky Mountain Element C50, 2025 Kona Hei Hei.
Where each sits in its class
Rocky Mountain Element C50Kona Hei Hei
Each bike is ranked against the other XC bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Rocky Mountain Element C50C50 | Kona Hei HeiHei Hei G10 |
|---|---|---|
| Frame | Rocky Mountain Element | Kona Hei Hei |
| Fork | Fox 34 Performance | Fox 34 Rhythm |
| Rear shock | Fox Float DPS Performance | Fox Float Rhythm |
| Shifter | Shimano XT | SRAM Eagle 70 Transmission |
| Derailleur | Shimano XT Di2 Wireless | SRAM GX Eagle Transmission |
| Cassette | Shimano SLX | SRAM Eagle Transmission |
| Crankset | Race Face Aeffect | SRAM Eagle |
| Wheelset | WTB ST Light i27 | Formula WTB ST |
| Tire | Maxxis Rekon | Maxxis Dissector |
| Brake | Shimano SLX | SRAM Motive Bronze |
| Handlebar | Rocky Mountain AM | Kona XC/BC 35 |
| Stem | Rocky Mountain XC | Kona XC/BC |
| Dropper post | Rocky Mountain Toonie | TranzX +RAD Internal |
| Saddle | WTB Silverado Race | WTB Volt |
| Chain | not listed | SRAM Eagle 70 Transmission |
| Bottom bracket | not listed | SRAM DUB PF92 Wide |
| Rotor | not listed | SRAM CenterLine |
| Grips | not listed | Kona Key |
| Headset | not listed | FSA 57E |
Know what is on every bike.
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