RNC SuperLite Titanium 48 Spline Spindle (19mm & 22mm)

Upgrade your Profile crankset with an RNC BMX Superlite Heat Treated Titanium Crank Spindle, precision CNC machined in the USA from premium 6Al-4V titanium, solution heat treated and aged (STA) for exceptional strength, durability, and weight savings.

Featuring a lightweight hollow design and 48-tooth spline interface, these spindles deliver outstanding strength without unnecessary weight.

HEAT-TREATED TITANIUM ADVANTAGE

Unlike conventional annealed titanium spindles, our 6Al-4V titanium spindles undergo STA heat treatment, achieving approximately 170,000 PSI tensile strength and 42 HRC hardness.

• Approximately 35% higher tensile strength than typical annealed 6Al-4V titanium.
• Approximately 8% greater calculated bending and torsional yield capacity compared with a conventional 19mm OD, 4mm-wall annealed 6Al-4V spindle, despite our lighter 3mm-wall design.
• 31% lighter finished 19mm spindle, delivering significant weight savings while maintaining excellent calculated shaft strength.
• Exceptional strength-to-weight ratio for demanding BMX riding.

SPECIFICATIONS

• Material: 6Al-4V Titanium
• Heat Treatment: Solution heat treated and aged (STA)
• Tensile Strength: Approximately 170,000 PSI
• Hardness: Approximately 42 HRC
• Design: Lightweight hollow spindle
• Spline Count: 48T (48-tooth spline)
• Available Lengths: 5.625" and 6.0"
• 19mm Weight: 84 grams (6" length)
• 22mm Weight: 100 grams (6" length)
• Included Hardware: 6Al-4V Titanium Flush-Mount Crank Bolts
• Manufacturing: Precision CNC machined
• 100% MADE IN THE USA