SunRace DLM-33 3x7 Speed Trigger Shifter Set – Black MTB Bicycle Gear Levers – Shimano Compatible.
Brand: SunRace
Part Type: Trigger Shifter Set
Model: DLM-33
Shifter Style: Trigger / Rapid-Fire
Speeds: 3x7 (21-Speed Drivetrain)
Indexing Type: Indexed – 2:1 Actuation Ratio (Shimano Compatible)
Color: Black
Material:
Reinforced polymer composite body
Steel internal ratchet and spring components
Clear acrylic optical gear display
Left/Right/Pair: Pair (Front + Rear Shifters)
Sold As: Set (2 pieces)
Mount Type: Integrated handlebar bracket (no removable clamp)
Handlebar Fit: Standard 22.2 mm (7/8”) diameter
Gear Display: Integrated optical gear indicators
Weight: Approx. 240 grams (pair with cables)
Country/Region of Manufacture: Taiwan
Handlebar Fit: 22.2 mm (7/8”)
Lever Length (avg.): 45–50 mm
Item Width: 90 mm
Item Height: 40 mm
Cable Length: Standard-length stainless inner cables pre-installed
✅ Fully Compatible With:
Shimano 7-Speed Rear Derailleurs (Tourney, Altus, Acera, Alivio, etc.)
Shimano 3-Speed Front Derailleurs (MTB, hybrid, and comfort bikes)
Shimano SL-M310 / EF-51 / EF-500 equivalent trigger shifters
Shimano 2:1 SIS Indexing Systems
SunRace Derailleurs using Shimano-standard actuation
Standard 7-speed freewheel or cassette systems
❌ Not Compatible With:
SRAM 1:1 actuation systems (MRX, X3, X4, Rocket, Attack, etc.)
MicroSHIFT 1:1 systems
Drop-bar or road shifters
✅ Shimano-Compatible Design:
Fully compatible with Shimano 3x7-speed derailleurs and drivetrains using the 2:1 cable pull ratio.
Works as a direct replacement for Shimano SL-M310 or EF-500 shifters.
Precise Indexed Shifting:
Distinct click feedback for each gear position ensures accurate shifting.
Dual-Lever Control:
Separate thumb and index triggers allow fast and intuitive upshifts/downshifts.
Integrated Optical Gear Indicators:
Clear windows display current gear at a glance — helpful for casual or recreational riders.
Integrated Handlebar Mounting Design:
No separate clamp ring — slides directly onto standard 22.2 mm handlebars for a clean fit.
Durable Construction:
Reinforced composite body with metal internals for long-lasting performance.
Compact & Lightweight:
Streamlined housing and low-profile design complement flat-bar setups.
Easy Installation:
Pre-fitted with inner stainless cables for quick plug-and-play replacement.
Primary Color: Matte Black
Accents: White printed gear markings with red indicator pointer
Mountain Bikes (MTB)
Hybrid / Trekking Bicycles
City / Comfort Bicycles
21-Speed Drivetrains
Replacement for Shimano SL-M310 or EF-500-style trigger sets
1 × Left 3-Speed Trigger Shifter
1 × Right 7-Speed Trigger Shifter
2 × Integrated Stainless Shift Cables (pre-installed)