VAAST BIKES Urban Bikes U/1 650B - Urban-U/1-S
The Model U/1 650b has been designed for what most people who venture out on a bike need. It is the unsung hero of the bike world: Fast, light, and nimble on all surfaces. Quick around your local bike trail, cool around the block, and rugged and durable on your gravel roads, fire roads and trail adventures.
Its sporty geometry, vibration dampening materials, and wide, comfortable tires will eat up the miles wherever you take it. It is perfect for riders who want a comfortable do-it-all bike, packed with performance and multi-functionality.
Specifications
| Frame |
Urban Optimized 700c / 650b AE81 ALLITE Super Mag - VAAST Urban geometry - internal cable routing - fender/rack ready |
| Fork |
VAAST Urban full-carbon disc - rack & fender ready |
| Tires |
Schwalbe SPICER K-Guard - 700 x 35c with reflective sidewalls |
| Rims |
Alex 700c Double Wall aluminum - 28H - Presta Valve |
| Rotors |
160mm Front & Rear |
| Crank |
Forged Alloy - 40T |
| Cassette |
microSHIFT 11-42T - 9-speed |
| Shifters |
microSHIFT Advent 1 x 9 |
| Rear Derailleur (RD) |
microSHIFT Advent M619M 1 x 9 speed |
| Chain |
KMC X9 |
| Brakes |
Hydraulic disc brakes with three-finger lever |
| Bottom Bracket |
Sealed cartridge bearing |
| Front Hub |
Sealed cartridge bearing - 6-bolt disc - 12 x 100mm thru axle - 28H |
| Rear Hub |
Sealed cartridge bearing - 6-bolt disc - QR - 28H |
| Spokes |
Double butted stainless |
| Axles |
M12 Front / Quick Release Rear |
| Handlebar |
VAAST Urban Pro - 6061 butted aluminum |
| Stem |
VAAST 3D forged |
| Grips / Tape |
VAAST Dual Density |
| Seat Post |
VAAST Micro adjust aluminum - 27.2mm x 350mm |
| Saddle |
VAAST Urban Sport |
What our Experts Think
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Lightweight Magnesium Frame: Strong, corrosion-resistant, and comfortable for daily rides.
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650B Wheels: Smooth over rough pavement, curbs, and urban terrain.
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1x9 Drivetrain: Simple and efficient microSHIFT Advent system with wide gear range.
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Hydraulic Disc Brakes: Reliable stopping power in all weather.
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Urban-Optimized Geometry: Comfortable, upright riding position for commuting.
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Rack & Fender Ready: Versatile for carrying gear or all-weather commuting.
Q&A
Q: What is the VAAST U/1 650B?
A lightweight urban bike built for commuting and light trail use, featuring a magnesium frame and versatile 650B wheels.
Q: What are the ?
Smooth ride on pavement and gravel, lightweight yet durable frame, and low-maintenance design.
Q: Who is it for?
Perfect for commuters, city riders, and anyone needing a comfortable, capable urban adventure bike.
Q: Is it easy to use?
Yes—simple gearing, modern geometry, and fender/rack compatibility make it user-friendly and versatile.
Maintenance Tips
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Daily Care:
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Wipe down the frame and components with a microfiber cloth to remove dirt and moisture.
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Inspect tires for punctures or wear; replace if necessary.
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Weekly Maintenance:
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Lubricate the chain using a suitable bike chain lubricant.
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Check brake pads for wear and ensure they make proper contact with the rim.
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Monthly Checks:
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Inspect the frame and fork for any signs of damage or stress.
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Tighten any loose bolts, including those on the handlebars, seat post, and wheels
