2023 Mondraker Foxy R vs 2021 Rocky Mountain Altitude Alloy
The 27.5 M is the Rocky Mountain Altitude Alloy size closest to your S Mondraker Foxy R. 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 Rocky Mountain Altitude Alloy
Compared with the Mondraker Foxy R in S, the Rocky Mountain Altitude Alloy in 27.5 M places the top of the head tube at about the same height and 3 mm further forward, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.
- Frame stack
- +1 mm
- About the same height
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- +7 mm
- Longer: steadier at speed
- Head angle
- −1.2°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Mondraker Foxy R is drawn. The Rocky Mountain Altitude Alloy numbers we have for size 27.5 M are missing the chainstay length.
Geometry side by side
| Measurement | Mondraker Foxy R S | Rocky Mountain Altitude Alloy 27.5 M | Difference |
|---|---|---|---|
| Reach | 450 | 453 | +3 mm |
| Stack | 606 | 607 | +1 mm |
| Head tube angle | 66 | 64.8 | −1.2° |
| Seat tube angle | 76 | 75.8 | −0.2° |
| Effective top tube | 606 | not listed | |
| Chainstay length | 435 | not listed | |
| Wheelbase | 1193 | 1200 | +7 mm |
| BB height | 355 | not listed | |
| Seat tube length | 380 mm | not listed | |
| Head tube length | 90 mm | not listed | |
| BB drop | not listed | not listed | |
| Standover | not listed | not listed |
Differences are the Rocky Mountain Altitude Alloy minus the Mondraker Foxy R. Full charts: 2023 Mondraker Foxy R, 2021 Rocky Mountain Altitude Alloy.
Where each sits in its class
Mondraker Foxy RRocky Mountain Altitude Alloy
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 | Mondraker Foxy RR | Rocky Mountain Altitude AlloyAlloy 30 |
|---|---|---|
| Frame | Mondraker Foxy 29 | Rocky Mountain FORM™ Alloy |
| Fork | Öhlins RXF 36 M.2 29 | Marzocchi Z1 |
| Rear shock | Öhlins TTX | Fox Float Performance |
| Shifter | SRAM SX Eagle | Shimano Deore |
| Derailleur | SRAM NX Eagle | Shimano Deore |
| Cassette | SRAM XG-1230 | Shimano Deore XT |
| Chain | SRAM SX Eagle | Shimano Deore M6100 |
| Crankset | SRAM SX Eagle | Shimano Deore XT |
| Bottom bracket | SRAM DUB | Shimano SM-BBMT500 |
| Tire | Maxxis Minion DHF, Maxxis Aggressor | Maxxis Minion DHF, Maxxis Minion DHR II DD |
| Brake | SRAM G2 | Shimano MT4120 |
| Handlebar | Onoff Sulfur 1.0 double butted 6061 alloy | Rocky Mountain AM |
| Stem | Onoff Sulfur FG 30mm 0º | Rocky Mountain AM |
| Grips | Onoff Twin | Ergon GE10 EVO |
| Headset | Onoff Saturn tapered for 1-1/8” to 1-1/2” head tube | FSA Orbit 57E |
| Dropper post | Onoff Pija dropper internal | Rocky Mountain Toonie Drop |
| Saddle | SDG Bel-Air 3.0 | WTB Volt |
| Wheelset | not listed | Shimano MT410 |
| Rotor | not listed | Shimano SM-RT64 |
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