Custom Nua Classica. A Love Letter to Timeless Cycling

The Nua Classica was a true one-off custom commission, developed and built exclusively for a single client.

The project gave us the freedom to explore a very focused mechanical concept: a clean titanium chassis built around belt drive, single speed simplicity, and coaster braking, which takes the inspiration from classic steel bikes from the 80s.

Here's what followed.

Nua Classica - fully custom Grade 9 titanium frame, fork, stem and bar. Belt-driven single speed with sliding dropouts and rear coaster brake.

Build Specifications

FRAME

Nua Ti-Custom Classica / Grade 9 Titanium (3Al-2.5V) / Belt port / Sliding dropouts / Straight 1-1/8" steerer / Integrated seatpost clamp / Mudguard mounts / Custom geometry & size / Engraved Nua headtube logo / Hand-brushed finish

FORK

Nua Ti-Fork Custom / Grade 9 Titanium (3Al-2.5V) / 1-1/8" Straight steerer / QR dropouts / Mudguard mounts

HEADSET

KCNC KHS (Silver)

DRIVETRAIN

Single SpeedGates Carbon Drive CDX belt system / 55T - 22T - 118T / CDX Hi-Performance Front Sprocket 55T, 130BCD, Alloy (Black) / CDX Stainless Steel Rear Sprocket 22T / CDX Belt 118T (Black)

CRANKSET

BLB Pista Vera (Black)

BOTTOM BRACKET

Shimano BB-UN30 JIS 117.5 mm

PEDALS

Acros Urban (Black)

BRAKES

Rear coaster brake only (no front brake)

REAR HUB

Shimano CB-E110 / 165×109 mm, single speed coaster brake, 36H (Silver)

FRONT HUB

Shimano HB-RS400 — 32H (Silver)

RIMS

DT Swiss 545D 28" / 36H rear / 32H front (Black)

SPOKES

DT Swiss / Champion rear 290 mm / Competition front 296 mm (Silver)

TIRES

Panaracer GravelKing / 700×40 mm (Black)

COCKPIT & CONTACT POINTS

Custom titanium stem & handlebar

Custom copper stem cap

Brooks Slender leather grips (Honey)

SEATPOST AND SADDLE

Nua Ti-Post / Grade 9 Titanium, Ø27.2 mm / 0 mm setback (Brushed)

Brooks B17 Special saddle (Honey)

MUDGUARDS

Curana C-Lite — 700C / 45 mm (Black)

For this project, we created a fully custom cockpit - a titanium unicrown fork and a matching titanium stem and handlebar combo, all designed to integrate seamlessly with the frame. Combined with a single-speed Gates Carbon Drive CDX belt system and rear coaster brake, the result is a silent, low-maintenance bike with clean, flowing lines, where every component was tailored to both function and aesthetic.

💬 Have an idea for a special, custom dream bike? Get in touch via contact@nuabikes.com