Velopedia Bicycle Archive
2025 Santa Cruz Megatower X0 AXS RSV
Original specifications: 29 wheels · 34.92 lbs / 15.84 kg published weight · geometry for 5 published sizes.
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At a glance
- Model year
- 2025
- Category
- Mountain
- Original MSRP
- $9,749.00
- Sizes
- S, M, L, XL, XXL
- Colors
- Gloss Crimson, Matte Black
- Weight
- 34.92 lbs / 15.84 kg
- Geometry
- 5 manufacturer sizes
- In this record
- 21 specifications · 3 archived images · original MSRP · geometry
- Archive ID
- 900000393
Original buildCarbon Fiber · 29
Frameset
| Frame Construction | Carbon CC Frame |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | FOX 38 Float Factory Elite, Grip X2, 170mm -or- RockShox Zeb Ultimate, 170mm |
| Rear Shock | Fox Float X2 Factory, 230x65 |
Drivetrain
| Shifters | SRAM AXS Pod Controller Rocker Paddle |
|---|---|
| Rear Derailleur | SRAM X0 Eagle AXS T-Type, 12spd |
| Crankset | SRAM X0 Eagle DUB T-Type Crankset, 32t |
| Bottom Bracket | SRAM DUB 73mm MTB Wide BB |
| Cassette | SRAM X0 Eagle T-Type, 10-52t |
| Chain | SRAM X0 Eagle T-Type, Flattop, 12spd |
Brakes
| Brakes | SRAM Maven Silver Stealth |
|---|
Cockpit & Contact Points
| Headset | Cane Creek 40 IS Integrated Headset |
|---|---|
| Handlebar | Santa Cruz 35 Carbon Bar, 800mm |
| Stem | Burgtec Enduro MK3, 42mm |
| Saddle | WTB Silverado Medium Fusion, CroMo SL |
| Seatpost | OneUp Dropper Post, 31.6 |
Wheels & Tires
| Hubs | (F) Industry Nine 1/1, 15x110, 6-Bolt, 28h / (R) Industry Nine 1/1, 12x148, XD, 6-Bolt, 28h |
|---|---|
| Rims | (F) Reserve 30|HD Carbon / (R) Reserve 30|HD Carbon |
| Front Tire | Maxxis Assegai 29"x2.5", 3C MaxxGrip, EXO+ |
| Rear Tire | Maxxis Minion DHR II 29x2.4" 3C MaxxTerra, Double Down |
| Wheel Size | 29 |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 13 measurements
| Measurement | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Seat tube | 380 mm | 405 mm | 430 mm | 460 mm | 500 mm |
| Top tube | 570 mm | 594/595 | 613 mm | 637/638 | 666/667 |
| Head tube | 90 mm | 100 mm | 115 mm | 135 mm | 150 mm |
| Head-tube angle | 63.8°/63.5° | 63.8°/63.5° | 63.8°/63.5° | 63.8°/63.5° | 63.8°/63.5° |
| Seat-tube angle | 77.24°/77.0° | 77.42°/77.2° | 77.8°/77.5° | 77.8°/77.5° | 77.8°/77.5° |
| Chainstay / rear center | 436/437 | 437/438 | 440/441 | 443/444 | 447/448 |
| Wheelbase | 1206 mm | 1236/1237 | 1266 mm | 1298 mm | 1333/1334 |
| Bottom-bracket drop | 26.5/30 | 26.5/30 | 26.5/30 | 26.5/30 | 26.5/30 |
| Bottom-bracket height | 346/342.5 | 346/342.5 | 346/342.5 | 346/342.5 | 346/342.5 |
| Reach | 430/427 | 455/452 | 475/472 | 495/492 | 520/517 |
| Stack | 616/618 | 625/627 | 638/640 | 656/658 | 670/672 |
| Standover height | 709/705 | 716/712 | 723/718 | 722/717 | 724/720 |
| Front center | 770 mm | 799 mm | 826 mm | 855 mm | 886 mm |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

SRAM X0 Eagle Transmission 12-Speed Chain Dark Polar, 126 links
126 links

SRAM XS-1295 X0 Eagle Transmission 12-Speed Cassette Black, 10-52t
10-52t

Maxxis Assegai Wide Trail 3C/TR 29in Tire Double Down/3C/MaxxGrip, 29x2.5
29x2.5
Replacement option · verify fit
More parts (6)

Maxxis Minion DHR II Wide Trail 3C/Double Down/TR 29in Tire Maxx Grip 3C/DD/WT, 29x2.4
29x2.4
Replacement option · verify fit

Goodyear Wrangler MTF 29in Tubeless Tire Black, 29x2.4
29x2.4
Replacement option · verify fit

SRAM X0 Eagle Transmission V2 Boost DUB Crankset Black, 165mm, 32t
165mm, 32t

SRAM X0 Eagle AXS Transmission Rear Derailleur Black, 52T Max
52T Max

OneUp Components V3 Dropper Post Black, 31.6x240mm Travel
31.6x240mm Travel
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2025 Santa Cruz Megatower X0 AXS RSV · Mountain · Published sizes: S, M, L, XL, XXL
Frame and fork
Inspect the frame and fork →Archived: Frame: Carbon CC Frame · Fork: FOX 38 Float Factory Elite, Grip X2, 170mm -or- RockShox Zeb Ultimate, 170mm
Suspension
Evaluate the suspension →Archived: Fork: FOX 38 Float Factory Elite, Grip X2, 170mm -or- RockShox Zeb Ultimate, 170mm · Rear shock: Fox Float X2 Factory, 230x65
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM AXS Pod Controller Rocker Paddle · Rear derailleur: SRAM X0 Eagle AXS T-Type, 12spd · Crankset: SRAM X0 Eagle DUB T-Type Crankset, 32t · Bottom bracket: SRAM DUB 73mm MTB Wide BB · Cassette: SRAM X0 Eagle T-Type, 10-52t · Chain: SRAM X0 Eagle T-Type, Flattop, 12spd
Brakes
Inspect the brakes →Archived: Brakes: SRAM Maven Silver Stealth
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29 · Rims: (F) Reserve 30|HD Carbon / (R) Reserve 30|HD Carbon · Hubs: (F) Industry Nine 1/1, 15x110, 6-Bolt, 28h / (R) Industry Nine 1/1, 12x148, XD, 6-Bolt, 28h · Front tire: Maxxis Assegai 29"x2.5", 3C MaxxGrip, EXO+ · Rear tire: Maxxis Minion DHR II 29x2.4" 3C MaxxTerra, Double Down
Controls and contact points
Archived: Headset: Cane Creek 40 IS Integrated Headset · Handlebar: Santa Cruz 35 Carbon Bar, 800mm · Stem: Burgtec Enduro MK3, 42mm · Seatpost: OneUp Dropper Post, 31.6 · Saddle: WTB Silverado Medium Fusion, CroMo SL
Before and during the test ride
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Gallery3 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





