2021 Rocky Mountain Altitude Alloy vs 2023 Mondraker Foxy R
The L is the Mondraker Foxy R size closest to your 27.5 L Rocky Mountain Altitude Alloy. 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 Mondraker Foxy R
Compared with the Rocky Mountain Altitude Alloy in 27.5 L, the Mondraker Foxy R in L places the top of the head tube 5 mm lower and 17 mm further forward, relative to the bottom bracket.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- +17 mm
- Longer frame reach
- Wheelbase
- −1 mm
- About the same
- Head angle
- +1.2°
- Steeper: sharper steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Rocky Mountain Altitude Alloy numbers we have for size 27.5 L are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Rocky Mountain Altitude Alloy 27.5 L | Mondraker Foxy R L | Difference |
|---|---|---|---|
| Reach | 478 | 495 | +17 mm |
| Stack | 635 | 630 | −5 mm |
| Head tube angle | 64.8 | 66 | +1.2° |
| Seat tube angle | 75.8 | 76 | +0.2° |
| Effective top tube | not listed | 654 | |
| Chainstay length | not listed | 435 | |
| Wheelbase | 1249 | 1248 | −1 mm |
| BB drop | not listed | not listed | |
| Standover | not listed | not listed | |
| Seat tube length | not listed | 470 mm | |
| Head tube length | not listed | 115 mm | |
| BB height | not listed | 355 |
Differences are the Mondraker Foxy R minus the Rocky Mountain Altitude Alloy. Full charts: 2021 Rocky Mountain Altitude Alloy, 2023 Mondraker Foxy R.
Where each sits in its class
Rocky Mountain Altitude AlloyMondraker Foxy R
Each bike is ranked against the other enduro 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 Altitude AlloyAlloy 30 | Mondraker Foxy RR |
|---|---|---|
| Frame | Rocky Mountain FORM™ Alloy | Mondraker Foxy 29 |
| Fork | Marzocchi Z1 | Öhlins RXF 36 M.2 29 |
| Rear shock | Fox Float Performance | Öhlins TTX |
| Shifter | Shimano Deore | SRAM SX Eagle |
| Derailleur | Shimano Deore | SRAM NX Eagle |
| Cassette | Shimano Deore XT | SRAM XG-1230 |
| Chain | Shimano Deore M6100 | SRAM SX Eagle |
| Crankset | Shimano Deore XT | SRAM SX Eagle |
| Bottom bracket | Shimano SM-BBMT500 | SRAM DUB |
| Wheelset | Shimano MT410 | not listed |
| Tire | Maxxis Minion DHF, Maxxis Minion DHR II DD | Maxxis Minion DHF, Maxxis Aggressor |
| Brake | Shimano MT4120 | SRAM G2 |
| Rotor | Shimano SM-RT64 | not listed |
| Handlebar | Rocky Mountain AM | Onoff Sulfur 1.0 double butted 6061 alloy |
| Stem | Rocky Mountain AM | Onoff Sulfur FG 30mm 0º |
| Grips | Ergon GE10 EVO | Onoff Twin |
| Headset | FSA Orbit 57E | Onoff Saturn tapered for 1-1/8” to 1-1/2” head tube |
| Dropper post | Rocky Mountain Toonie Drop | Onoff Pija dropper internal |
| Saddle | WTB Volt | SDG Bel-Air 3.0 |
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