Design a bike that survives Kenya terrain. Every choice matters — just like real engineering.
<10%
Kenyans own transportation
250+
Kids we serve in Nairobi
5
Decisions to build your bike
You are a 4Hope engineer. Design a mountain bike for Kenyan students using real engineering principles. Make the right choices — their community depends on it.
Question 1 of 5Score: 0
Question 01 — Frame Material
What material do you build your bike frame from?
Kenya roads are rough. Heat is intense. Budget is tight. Choose wisely.
🔩
Steel
Strong and affordable
⚡
Aluminum
Light and rust resistant
🌿
Bamboo
Sustainable and local
💎
Carbon Fiber
Ultralight and premium
Question 02 — Wheel Size
What wheel size do you choose for Kenya terrain?
Think about mud, rocks, dirt paths and uneven ground.
🔵
26 inch
Small and nimble
⭕
29 inch
Best for rough terrain
🟠
27.5 inch
Balanced choice
🔴
20 inch
Small and compact
Question 03 — Gear System
What gear system do you install?
Kenya has steep hills. Riders carry heavy loads. Repairs need to be easy.
1️⃣
Single Speed
Simple, no maintenance
⚙️
21 Speed
Best range for hills
🔧
7 Speed Hub
Protected and reliable
🚫
Fixed Gear
Trendy but risky
Question 04 — Braking System
What brakes do you install on the bike?
Kenya gets heavy rain. Mud season is real. Stopping power saves lives.
🛑
Rim Brakes
Cheap but weak in mud
💪
Hydraulic Disc
Best stopping power
🔩
Mechanical Disc
Reliable and repairable
😬
No Brakes
Freewheel life
Question 05 — Final Feature
What is the most important feature you add last?
This bike will carry people, goods, and dreams. Think beyond just riding.