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SL-TX50 SIS Thumb Shifter Plus 6 & 7-Speed Pair

Accurate SIS Indexed Shifting – Shimano Index System (SIS) provides precise, reliable gear changes with positive click-to-click shifting for confident gear selection
Light Action Thumb Operation – Easy, light-action thumb shifters require minimal effort for smooth gear changes, reducing hand fatigue on long rides
Versatile Drivetrain Compatibility – Available for both 3x6 speed (18 gears) and 3x7 speed (21 gears) drivetrains, perfect for mountain bikes and trekking bikes
Separate Shifter Design – Independent thumb shifters allow you to use your preferred brake levers, giving you flexibility in component choice and setup
Tourney TX50 Reliability – Proven Tourney series quality delivers dependable performance for recreational riding, commuting, and urban cycling

Brand: Shimano

Type: Gear Levers

Availability: In stock Out of stock

Delivery: 2-3 working days

speed 3 x 7 Pair 3 x 6 Pair

Product variants

Regular price: £25.89
Sale price: £25.89
Regular price
Unit price: per

Quantity

Description

Tourney TX50 thumb Shifter plus provides accurate light action easy gear changes for use with 6 & 7-speed drivetrains

Pair of SIS shift levers (indexed)

Product Type MTB & Flat Bar

Discipline MTB

Discipline Urban & Trekking

Side Pair

Colour Silver

Size 3 x 6 & 3 x 7 Speed

Di2 No

Shift Mechanism Mechanical

Shipping & Returns

Our Promise

All orders are carefully prepared and dispatched within 1-2 business days. Once your package is on its way, you will receive a confirmation email with a tracking number so you can follow its journey.

Same‑Day Dispatch

Orders placed before 2pm are dispatched the same day via Royal Mail Tracked 24.

If there are any stock issues, we will contact you by phone or email to update you and reorganise delivery.

Shipping Costs

• Orders over £50 qualify for free shipping.

• Orders under £50 have a flat delivery fee of £3.00.

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FAQ

Q: What does "SIS" mean and why is it important? A: SIS stands for Shimano Index System, which provides indexed shifting with precise click-to-click gear changes. Each click moves you exactly one gear, making shifting accurate and predictable compared to friction shifters where you have to feel for the right position.

Q: Can I use these with any brake levers? A: Yes! Unlike integrated shift/brake levers, these are separate thumb shifters that mount independently on your handlebars. This means you can pair them with any brake levers you prefer - V-brake levers, disc brake levers, or whatever suits your setup.

Q: What's the difference between the 3x6 and 3x7 versions? A: The 3x6 version works with 6-speed rear cassettes (18 total gears with a triple chainring), while the 3x7 works with 7-speed cassettes (21 total gears). Choose the version that matches your bike's rear cassette.

Q: How do thumb shifters work? A: Thumb shifters use a simple push-lever mechanism operated by your thumb. You push the lever in one direction to shift to easier gears and the other direction for harder gears. The light action requires minimal effort for smooth, easy gear changes.

Q: Are these suitable for mountain biking or just casual riding? A: These Tourney TX50 shifters are ideal for recreational mountain biking, urban cycling, trekking, and commuting. They're designed for reliable everyday performance rather than competitive racing, making them perfect for casual riders and general-purpose bikes.