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FOMTOR Bike Shifters Set Review: Practical 21-Speed Upgrade for Mountain Bikes

FOMTOR 3x7 Bike Shifters Set 21Speed MTB Shifters Left Right Brake Lever Shifter with Shift Cables for Mountain Bike Folding Bike,V-Brake (1 Pair)
4.7
[Fits 22.2mm Handlebars]  Compatible with V-brake and mechanical disc brake systems; ideal for mountain and folding bikes.
[Optical Gear Display]  Clear optical gear indicator shows current gear position at a glance.
[21-Speed System]  3x7 gearing offers 21 speeds for versatile riding and precise shifting.
[Complete Shifter Set]  Includes left and right shifters plus shift cables for quick installation.
[Durable Construction]  Aluminum alloy levers and stainless steel cables ensure strength and longevity.
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Cycling component designed to combine braking and gear selection into a single control, improving ride confidence on trails and around town. Commuters and weekend riders gain a neater cockpit and firmer uphill shifts with the FOMTOR Bike Shifters Set. Is the kit the most durable and compatible option for a wide range of bikes?

⚡ At a Glance
  • Shifting Performance: Indexed 3x7 system with an optical gear indicator for clear, predictable changes
  • Best for: Mountain and folding bike riders wanting integrated brake and shifter control
  • Not ideal for: Bikes with hydraulic disc brakes or handlebars that are not 22.2mm diameter

Pair of left and right brake lever shifters, arranged as 3-speed left and 7-speed right. Compatible with V-brake and mechanical cable disc brake systems, with aluminium alloy levers and stainless steel cables.


Accurate gear changes, with an optical gear display

Indexed 3x7 shifting uses discrete click positions for each gear, while the optical indicator shows the selected gear numerically. Shift cables carry lever movement to the derailleur, translating indexed inputs into precise drivetrain changes.

Confident, repeatable shifts reduce missed changes on climbs and technical sections. Clear visual feedback helps maintain concentration without needing to glance down repeatedly.

Simplified cockpit control, with combined brake lever and shifter

Left and right assemblies integrate brake levers and thumb or trigger shifters into a single unit, with brake levers formed from aluminium alloy. Brake cables are stainless steel, routed to standard cable-actuated systems.

Cleaner handlebar layout gives easier one-handed control and faster reactions when braking and changing gear quickly. Integrated operation works well for commuting and trail riding where quick inputs help safety.

Good compatibility and durability, with 22.2mm fit and metal components

Design is specified for a 22.2mm handlebar clamp and lists compatibility with V-brake and mechanical cable disc brake systems. Levers use aluminium alloy construction while shift and brake cables use stainless steel for corrosion resistance.

Easy to fit to common mountain and folding bikes, with materials chosen to withstand regular use. Included shift cables mean fewer trips to the bike shop before the first ride.

✨ The 4 Key Reasons for FOMTOR Bike Shifters Set
  1. Handlebar compatibility, Fits standard 22.2mm handlebars for most MTB and folding bikes
  2. Brake compatibility, Works with V-brake and mechanical cable disc brake systems reliably
  3. Visible gear indicator, Optical display shows gear position at a glance while riding
  4. Included cables, Pair includes stainless steel shift cables and ready-to-fit components

(Exactly 4 points. Feature in bold, then em dash, then benefit. Benefit must be concrete and measurable. No repetition of subheadings, but summary. CRITICAL: DO NOT repeat content from at_a_glance section.)

📋 Technical Details at a Glance
  • Type: 21-speed, 3x7 shifter and brake lever pair
  • Brand: FOMTOR
  • Speeds: 21-speed (3-speed left, 7-speed right)
  • Handlebar Diameter: Compatible with 22.2mm handlebars
  • Brake Compatibility: V-brake and mechanical cable disc brake
❓ Frequently Asked Questions

Q: Will these shifters fit my handlebar?

A: They are suitable for handlebars with a 22.2mm diameter, which is common on many mountain and folding bikes.

Q: Are they compatible with disc brakes?

A: Compatibility is limited to cable-actuated disc brakes, described as mechanical disc brakes, and V-brake systems.

Q: Do they come with cables and are they sold as a pair?

A: The package includes one pair of left and right brake lever shifters and comes with shift cables, ready for installation.

🏆 Our Verdict

These shifters suit riders who want straightforward, integrated braking and shifting on common mountain and folding bikes. The combination of a 3x7 indexed system, optical gear display and metal construction gives reliable everyday performance. While exact pricing varies, aluminium levers and included stainless steel cables make the kit a practical long-term value.