This AliExpress Bike Gadget is Pretty Incredible...
00:21:42Trace Velo

This AliExpress Bike Gadget is Pretty Incredible...

Trace Velo

11 novembre 2025

Guarda su YouTube
Descrizione

This mechanical to hydraulic disc brake converter might be one of the coolest bike gadgets I've found on AliExpress. It’s from a brand called IIIPro (3Pro), costs less than £50, and claims to transform any old-school mechanical shifter into a fully hydraulic braking system, complete with dual-piston calipers!

SIROKO CLOTHING – 10% off (automatically applied via link below): https://srko.co/tracevelo

In this episode, I’ll show you the build quality, get it installed on a road bike, bleed the system, and ultimately test whether this budget hydraulic conversion kit actually works. Could this be the perfect upgrade for riders running mechanical groupsets or mechanical disc brakes like the TRP Spyre? Let’s find out.

The build:
I fitted the kit to a carbon OG-EVKIN road bike frame with Micro-New mechanical shifters and Shimano 105 R7000 derailleurs to see if it really delivers “hydraulic” performance on a budget mechanical groupset.

Why it’s interesting:
This idea is nothing new, the Giant’s Conduct SL system did something similar back in 2016, but this kit is lighter, far cheaper, and much easier to get hold of.

My thoughts:
-Great braking performance, very close to fully hydraulic
-Noticeably stronger and sharper than any mechanical caliper
-A bit tricky to bleed and mount on the bike

For £50, though… this is one seriously impressive upgrade for anyone wanting hydraulic-like braking without changing their groupset.

AliExpress links - (affiliate links, they help support the channel at no extra cost)
https://s.click.aliexpress.com/e/_c3QXW93H
https://s.click.aliexpress.com/e/_c3hddZxl

Timestamps:
00:00 – Intro
00:46 – Hydraulic converter - Info & cost
02:43 – Bike build overview
04:35 – Hydraulic converter - design & weight
05:48 – Hydraulic converter - install & bleed
07:31 – Siroko sponsor
08:21 – Brake bleed info
11:17 – Use cases
12:39 – Bike reveal and brake test
14:55 – Install issue
16:10 – Considerations & conclusion
18:41 – Bonus clip

Intro roll:
Created by Dev Joshi - http://www.go2dev.co.uk

Instagram:
https://www.instagram.com/tracevelo/

Email:
tracevelouk@gmail.com

Please note:
I am not a professionally trained bike mechanic. There can be risks associated with using products that are unbranded, untested, or come from sources where the provenance is unknown. Please talk to a qualified bike mechanic if you are in any doubt.

In essence, be careful, do your research, and cycle safe!!!

Keywords: mechanical to hydraulic disc brake,hydraulic brake converter,3Pro brake kit,aliExpress bike gadgets,budget hydraulic brakes,mechanical disc brake upgrade,hydraulic brake performance,road bike disc conversion,gravel bike brakes,DIY bike build,trace velo,aliExpress cycling,mechanical shifter hydraulic,budget bike tech,hydraulic vs mechanical brakes,giant conduct sl alternative,best budget bike upgrades,OG-EVKIN bike build,Road bike disc brake converter

IIIPRO 6R Road Bicycle Hydraulic Disc Brake CNC Integrated Caliper Road Bicycle Line Pull Brake Modified Hydraulic Disc Brake

IIIPRO 6R Road Bicycle Hydraulic Disc Brake CNC Integrated Caliper Road Bicycle Line Pull Brake Modified Hydraulic Disc Brake

Creato: 08 luglio 2025

Il recensore testa il kit convertitore freno idraulico IIIPRO, che converte le leve meccaniche in freni a disco idraulici. Afferma che il kit include due convertitori in alluminio e pinze freno a doppio pistone per meno di 50 sterline. Il recensore trova le prestazioni frenanti impressionanti, molto vicine ai sistemi idraulici originali e di gran lunga superiori a qualsiasi freno a disco meccanico che abbia testato. Installa con successo il kit su una bici da allenamento invernale, notando la necessità di un orientamento corretto e di una tecnica di spurgo adeguata. Sebbene non sia facile da installare come i sistemi integrati, il recensore è molto colpito dal rapporto qualità-prezzo e dalle prestazioni.

Riepilogo IA

Pros

  • Molto conveniente (sotto le 50 sterline)
  • Include due convertitori e entrambe le pinze dei freni
  • Unità in alluminio monoblocco decentemente realizzate
  • Prestazioni frenanti impressionanti, vicine ai sistemi idraulici originali
  • Molto meglio di qualsiasi pinza freno a disco meccanica testata
  • Buona potenza e modulazione
  • Bella sensazione di frenata solida
  • Il design del serbatoio diviso gestisce bene le diverse orientazioni

Cons

  • Richiede dischi da 160 mm (non supporta i 140 mm)
  • Nessuna documentazione adeguata inclusa
  • Nessun attacco per il spurgo sui freni a pinza (solo una porta filettata)
  • L'installazione richiede di trovare la posizione per due unità separate
  • Può essere disordinato posizionarlo ordinatamente sulla bici
  • Potrebbe interferire con i supporti del computer o le luci della bici
  • La durata è sconosciuta (costruzione in alluminio, piccole guarnizioni delicate)
  • Non è facile da installare come i sistemi integrati

MyBikeParts

aliexpress.com
aliexpress.com#1005008324673203Affiliato · MyBikeParts
🇺🇸96,19 $
🇫🇷68,99 €
🇬🇧55,39 £
5.0 (6)
Verificato 9 mesi fa