Santa Cruz Megatower 90

Santa Cruz

Megatower90

Claimed weight36.06 lb / 16.36 kgComplete bike
FrameCarbon C 29" 170mm Travel…FOX 38 Float Performance, G…
GroupsetSRAM 90 Eagle T-Type, 1…SRAM XS 1275 Eagle T-Type…
WheelsReserve 30|TR AL; DT Sw…Maxxis Assegai 29x2.5, 3C M…
Tire clearance64 mm

Santa Cruz’s second-generation Megatower is a dedicated 29-inch enduro race bike built to manage high speeds and steep, demanding terrain. Moving away from the slightly more versatile trail-bike overlap of its predecessor, this iteration is a pure gravity-focused machine. It utilizes the brand’s lower-link-driven VPP suspension to deliver 165mm of rear travel, paired with a 170mm fork. The chassis introduces a modernized layout featuring the Glovebox, a downtube storage hatch for carrying tools and spares internally. Designed for riders who prioritize descending stability and bottom-out resistance, the Megatower requires aggressive input and momentum to reach its potential. It is a substantial, purpose-built tool for enduro racers and bike park regulars who need a chassis capable of absorbing massive impacts without losing composure.

Santa Cruz Megatower
Build
Size
01 / Buy

Where to get it.

No retailers stocking size m.

Size
0 retailers · Size m

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02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
4 components
FrameCarbon C 29" 170mm Travel VPP™
Weight36.06 lb / 16.36 kg
02Drivetrain & brakes
10 components
Bottom bracketSRAM DUB 73mm MTB Wide BB (73mm threaded shell)
Front brakeSRAM Maven Base
Rear brakeSRAM Maven Base
Front rotorSRAM HS2 200mm
Rear rotorSRAM HS2 200mm
03Wheels & tires
4 components
04Cockpit & contact
5 components
StemOneUp Enduro Stem, 42mm
HandlebarsOneUp Aluminum Bar
SeatpostOneUp Dropper Post, 31.6
Grips/TapeSanta Cruz Bicycles House Grips
03 / Geometry

Geometry & fit.

5 sizes published.

The Megatower’s geometry is optimized for stability and a centered rider weight distribution. A key update for this generation is the implementation of size-specific chainstays, which grow proportionally with the reach across the size run. This ensures that riders of varying heights experience the same balanced posture, keeping the front wheel weighted without requiring extreme body shifts.

A steep seat tube angle, hovering around 77.5 degrees depending on the size, places the rider in an upright, efficient pedaling position that prevents the front end from wandering on steep climbs. Up front, the slack 63.5-degree head tube angle pushes the front wheel far ahead, prioritizing high-speed tracking over low-speed agility. A flip-chip in the lower link allows for minor adjustments, altering the head and seat angles by a fraction of a degree and shifting the bottom bracket height slightly. In the lower setting, riders report feeling positioned deeply inside the bike rather than perched on top of it, enhancing cornering grip and overall control on steep gradients.

Reach × Stack · size mmm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

710669628586545STACK ↑385424463501540REACH →UPRIGHTLONG / LOWSize m455 · 625
01Fit geometry6 values
Stack625 mm
Reach455 mm
Top tube594 mm
Headtube length100 mm
Standover height716 mm
Seat tube length405 mm
02Component geometry1 values
Stem length42 mm
03Handling geometry7 values
Headtube angle63.8°
Seat tube angle77.42°
BB height346 mm
BB drop26.5 mm
Front center799 mm
Wheelbase1236 mm
Chainstay length437 mm

Which size should I buy?

Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.

Your height
5'8"173 cm
5'0"5'5"5'10"6'3"6'7"
Recommended sizemBased on stack, reach & ETT for your height · score 92/100.

Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.

04 / Other builds

The lineup.

4 builds, ranging $6,099 – $9,749.

Santa Cruz splits the Megatower lineup across two carbon frame tiers: the standard C carbon and the lighter, premium CC carbon. The build ladder starts at a high entry price, reflecting the bike's positioning as a premium enduro machine.

The entry-level 90 build utilizes the C frame, pairing a Fox Float Performance fork and shock with a SRAM 90 Eagle transmission and SRAM Maven Base brakes. Stepping up to the GX AXS build retains the C frame but upgrades the suspension to Fox Performance Elite dampers and introduces SRAM's wireless GX AXS drivetrain alongside Maven Bronze brakes.

The top two builds move to the lighter CC carbon frame and feature Fox Factory Elite suspension. The X0 AXS build includes a SRAM X0 Eagle transmission and Maven Silver brakes, rolling on aluminum rims laced to Industry Nine hubs. The flagship X0 AXS RSV build shares this exact drivetrain and braking specification but upgrades the rolling stock to Santa Cruz’s proprietary Reserve carbon wheels. Across all builds, Santa Cruz specs aggressive Maxxis tires, typically pairing an Assegai up front with a Minion DHR II in the rear.

01
X0 AXS RSV build
X0 AXS RSV
Carbon CC
$9,749
02
X0 AXS build
X0 AXS
Carbon CC
$8,699
03
GX AXS build
GX AXS
Carbon C
$7,249
04
90 build
· Currently viewing90
Carbon C
$6,099On this page
05 / Reviews

From the press.

16 reviews from the cycling press.

Critics generally agree that the Megatower is a highly capable descender that rewards an aggressive riding style, though it requires momentum to truly wake up. At lower speeds, the handling can feel sluggish, but once pointed down a steep grade, the bike stabilizes and tracks predictably. Testers frequently praised the revised suspension kinematics for providing excellent mid-stroke support and bottom-out resistance.

There is a notable split among reviewers regarding the bike's compliance over high-frequency trail noise. While some testers found the suspension highly sensitive, others noted that the stiff carbon chassis transmits feedback on rough, chattery sections. One reviewer observed that the bike "skims through the chatter" (BikeRadar) rather than completely isolating the rider, which can lead to fatigue on long descents. Another tester highlighted this rigid character, noting a "chargey, easy-to-push feel" (Pinkbike) that occasionally translates to harshness.

Despite the stiff frame, the bike remains highly maneuverable when pushed hard. Reviewers found it easy to break the rear wheel loose intentionally, giving it a "slappy feel in the corners" (Pinkbike) that adds a layer of agility to an otherwise steadfast platform. Climbing is widely considered efficient for the category, with the VPP platform offering a "calm, planted feeling" (Blisterreview) that maintains traction over technical uphill roots and rocks.

06 / Compared to

Compared to.

Most-viewed comparisons.