Santa Cruz Hightower 4

2025 · Trail · 29"

Services logged

April 10, 2026

Last service

Tracked with RidePrint · maintenance logs for cyclists

Specifications

Frame

MaterialCarbon C (or CC) front and rear triangles

Suspension DesignReconfigured VPP (Virtual Pivot Point)

Rear Travel150mm

Head TubeIntegrated IS41/52 (41mm upper, 52mm lower)

Rear Axle Standard12x148mm Boost thru-axle

Derailleur HangerSanta Cruz machined alloy (UDH compatible)

BB Shell73mm threaded, 55mm chainline

Seat Post Diameter31.6mm

Rear Brake Mount180mm post mount (223mm max rotor)

Chain Guide MountsISCG-05

Frame StorageGlovebox downtube storage with tool wallet and tube purse

Chainstay LengthSize-specific, longer than previous gen

Sizes AvailableSM, MD, LG, XL, XXL

Suspension

Fork Travel160mm (geometry based on 160mm fork, 44mm offset)

Fork Axle15x110mm Boost thru-axle

Shock Size230x57.5mm (40x10 front bushing, 30x8 rear)

Flip ChipLower link, 2-position Hi/Lo

Wheels

Wheel Size29" only (not MX/mullet compatible)

Max Tire29" x 2.5" (non-radial)

Components

21 installed

Suspension

Rear Shock

Fox · Float X Performance Elite, 230x57.5mm

Fork

Fox · 36 Float Performance Elite, GRIP X2, 160mm, 44mm offset

Headset

Cane Creek · 40 IS Integrated IS41/52

Drivetrain

Rear Derailleur

SRAM · GX Eagle AXS T-Type, 12-speed

Shift Levers

SRAM · GX Eagle AXS Pod

Cassette

SRAM · XG-1275 Eagle, 10-52T, 12-speed, XD driver

Chain

SRAM · Eagle Flattop, 12-speed

Crankset

SRAM · GX Eagle DUB T-Type, 32T

Bottom Bracket

SRAM · DUB BSA 73mm threaded

Chain Guide

OneUp · Bashguide V2, ISCG-05

Brakes

Brake Calipers

SRAM · Maven Bronze Stealth, 4-piston hydraulic disc

Rotors

SRAM · HS2 180mm 6-bolt (front & rear)

Wheels

Front Wheel

DT Swiss · 370 hub, 15x110mm Boost, 28H; Reserve 30 SL AL 6069 alloy rim

Rear Wheel

DT Swiss · 370 hub, 12x148mm Boost, 32H, XD driver; Race Face ARC 30 HD alloy rim

Tires

Front Tire

Maxxis · Assegai 29" x 2.5", 3C MaxxGrip, EXO+ casing, TR

Rear Tire

Maxxis · Minion DHR II 29" x 2.4" WT, 3C MaxxTerra, EXO+ casing, TR

Cockpit

Handlebar

Santa Cruz · 35 Carbon, 800mm width

Stem

OneUp · Components or Burgtec Enduro, 42mm

Grips

Santa Cruz · House Grips

Dropper Post

OneUp · Dropper V3, 31.6mm

Saddle

WTB · Silverado Medium Fusion

Service history

Silver Tune-Up Full Suspension MTB w/ Bearing & Brake Service

April 10, 2026 · Bicycle Centres of Bothell

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