Crank Bolts and Caps: Why Rotating Weight Matters

Alex had ridden the same SL7 for three years. Everything was dialed. But the crank area still carried more weight than it needed to.

The Crank Area: Where Grams Add Up

The crank is the heart of your drivetrain. Every bolt and cap here contributes to rotating mass — and rotating weight matters more than static weight. A gram saved at the crank is worth more than a gram saved on the frame.

What TiNE Offers for Crank Systems

TiNE makes two titanium crank cap sets — both CNC-machined from Grade 5 Ti-6Al-4V:

Product	Compatibility	TiNE	Stock	Savings
Crank Cap Set	GP-3 / Cybrei cranks	12.1g	15.3g	3.2g
DUB Crank Cap Set	SRAM DUB cranks	10.5g	16.1g	5.6g

Both sets come in 8 anodized colors: Gold, Blue, Candy Red, Silver, Black, Pink, Green, and Rainbow.

Why Titanium for the Crank Area?

Titanium is as strong as steel, lighter than aluminum, and corrosion-resistant. The crank area sees constant vibration and weather exposure — a titanium cap outlasts aluminum without fading.

Grade 5 Ti-6Al-4V, the alloy TiNE uses, is the same material found in aerospace and medical implants.

Alex's Take

After installing TiNE DUB crank caps in Gold, Alex noticed the bike felt snappier on steep climbs. The rotating weight difference is subtle but real at higher cadences. Six months later, the anodizing showed no fading.