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  • G-MA ENGINEERING CO., LTD.

    Taiwan Manufacturers, Exporters.

    All Products

    Alloy 4-BOLT MTB Stem
    • Model No:
      XS17
    • Product Description:
      1.Forged Alloy to achieve light weight without sacrificing stiffness.
      2.Using AL 2014 for better strength.
      3.±17° degree angle for switching between ascending and descending handling geometry.
      4.Best match for 29'er for better handling on big ...
    X-14 Road Crankset
    • Model No:
      X14-XIV-CXO1
    • Product Description:
      1.X-14 has been designed to match the highest levels of professional cycling by giving riders componentry that inspires confidence and flawless performance.
      2.The Hollow Forged crank arm matched with the titianium axle offers the lightest, stiffest ...
    X12-SL MTB CRANKSET
    • Model No:
      X12-SL-A3
    • Product Description:
      The X12 crank continues AEROZINE's legendary tradition of excellence in aluminum cranks. Featuring our smooth shifting and strength, thanks to precised CNC machined rings.

      Designed and developed for anything from top level XC racing to All Mou...
    MTB CRANKSET
    • Model No:
      X11-7N-A1
    • Product Description:
      Hard forged crankset result in superior strength and a higher strength-to-weight ratio compared to solid arms. We offer a new range of hard forged AL-7050 crankset.

      X-11 7N is the lightest, stiffest, smoothest and strongest cranksets possible.

      ...
    Titanium Seat Clamp
    • Model No:
      XSC2.0QR
    • Product Description:
      *Designed to with stand high impact riding styles.
      *Precision CNC machined Alloy 7075 Head with Titanium Bolts for great fixing results on alloy railed saddles.
      *?31.8 / ?34.9mm OD & 6 colors for options.
    MTB Bottom Bracket
    • Model No:
      BB-05-XC-7368
    • Product Description:
      *Designed for XC / All Mountain and other high impact riding styles.
      *Aluminum Bearing Cups with high quality bearings.
      *Fits Shimano BB Systems with BC - 1.37" English Thread.
      *Smooth pedalling with enhanced seal drag reduction.
      *Comes with...
    Titanium Headset Spacer
    • Model No:
      XTS-05
    • Product Description:
      *Precision CNC machined Titanium 5mm spacers for 1 1/8" Fork.
      *Accurate spacing for acute geometry and great aesthetics.
    INTEGRATED HEADSET For MTB/ ROAD
    • Model No:
      XH851AA
    • Product Description:
      *Precision CNC machined Alloy 6061 T6 Caps with alloy cone bearing.
      *Made to be used with 1 1/8" forks.
      *6 colors for options.
      *The weight is lighter than normal bearing.
    Titanium INTEGRATED HEADSET
    • Model No:
      XH85x20TI
    • Product Description:
      *Precision CNC machined Titanium Cap with Alloy Top Cap.
      *Made to be used with 1 1/8", 1 1/4", 1.5" 3 types of forks.
    Titanium Handlebar
    • Model No:
      XBR5-TI
    • Product Description:
      1.Developed using high precision butting technology.
      2.Using Titanium for more light weight and stiffer option.
      3.5° Rise and 8° Sweep for more aggressive and direct handling feel.
    Seat Clamp
    • Model No:
      XSC1.0
    • Product Description:
      1.Super Light Weight design.
      2.Precision CNC machined Alloy 7075 for great fixing results.
      3.?31.8 / ?34.9mm OD & 6 colors for options.
    ALLOY 4-BOLT Road Stem
    • Model No:
      XS7
    • Product Description:
      1.3D forging method to achieve best ratio between light weight and stiffness.
      2.Using Alloy 7050 for light weight option.
      3.84° / 6° degree angle for switching between racing and comfort geometry.
      4.Introducing Ferrari Corsa Red color to juice up ...
    ALLOY 4-BOLT Stem
    • Model No:
      XEN
    • Product Description:
      1.Precision CNC machined Alloy 6061 Stem for mountain biking use.
      2.Aggressive looks for aggressive riding conditions.
      3.Designed to withstand high impact riding styles.
      4.Zero degree angle for absolute direct handling.
    HANDLEBAR & GRIP
    • Model No:
      XB1.2
    • Product Description:
      1.Produced using specific butted tooling to shape the desired conical diameter, rise and angle.
      2.PTriple Butted Shape for the best weight to stiffness ratio.
      3.PUsing Alloy 7050 for light weight option.
      4.P125mm shallow drop for more compact hand...
    MTB HANDLEBAR
    • Model No:
      XBR15
    • Product Description:
      1.Produced using specific butted tooling to shape the desired conical diameter, rise and angle.
      2.Triple Butted Shape for the best weight to stiffness ratio.
      3.Using Alloy 7050 for light weight option.
      4.15° Rise and 8° Sweep for more comfortable ...
    ROAD CRANKSET 2X10/2X11
    • Model No:
      X14-XIV-A2D
    • Product Description:
      1.X-14 has been designed to match the highest levels of professional cycling by giving riders componentry that inspires confidence and flawless performance.
      2.The Hollow Forged crank arm matched with the titianium axle offers the lightest, stiffest ...
    MTB CRANKSET 2X10
    • Model No:
      X10-BX-A2D
    • Product Description:
      1.HOLLOWTECH Crankset (2x10/ 3x10 speed) crank arm. Cold Forged aluminum provides superb strength and durability.
      2.Interchangeable with all of the BCD104/64mm chainrings. Offering various choices for bikes and riding style for the riders.
      3.Light ...
    MTB Crankset 1x11
    • Model No:
      XONE-O1-Light
    • Product Description:
      1.AEROZINE 1x11 crankset is a good option for your need: less weight, better chain control and the ability to drive up with any riding style.
      2.Crank arms are made of Hollowtech Technology - Providing the best ratio between stiffness, strength, weig...
    Cassette Sprocket
    • Model No:
      CS-44-SA-70-8
    • Product Description:
      1.Light up your cassette with AEROZINE lasted 44T expander sprocket.
      2.Add much needed range and extend the life of your original 10-42 cassette by replacing the aluminum 42T with the AEROZINE 44T sprocket.
      3.Not just to get an easier ride.
      4.It’s...
    Cassette Sprocket
    • Model No:
      CS-42-SA-70-4
    • Product Description:
      1.Make your move to 1X and crush the steepest climbs on your trail bike with the cassette sprocket.
      2.Add much needed range to your existing 1x 10 speed drivetrain without breaking the bank.
      3.The cassette sprocket is compatible with Shimano brand ...
    Internal Headset
    • Model No:
      XH808A
    • Product Description:
      1.Precision CNC machined Alloy 6061 T6 Cups.
      2.Made to be used with 1 1/8" forks.
      3.6 colors for options.
    INTEGRATED HEADSET
    • Model No:
      XH85x09TI
    • Product Description:
      1.Precision CNC machined Titanium Cap with Alloy Top Cap.
      2.Made to be used with 1 1/8", 1 1/4", 1.5" 3 types of forks.
    Headsets Top Cap
    • Model No:
      XHCAP-AL
    • Product Description:
      1.Precision CNC machined Alloy 6061 Top Cap with Laser Etchings.
      2.Comes with Star Nut for firm hold.
      3.6 colors for options.
    Threaed – Non Threadd Bottom Brackets
    • Model No:
      BSA30-05
    • Product Description:
      1.Fits ?30 mm crank spindle and BC - 1.37" English Thread.
      2.Compatible Cranks Spindles: Rotor BSA (68 & 73), ITA, BB89, BB386 evo (not with BB90 & BB94).
      3.Bearings for enhanced smooth pedallings and less seal drags.
    NON-THREADED BOTTOM BRACKETS
    • Model No:
      PF30C24PLXC05
    • Product Description:
      1.Compatible with Shimano only ?24mm OD Crank Spindle and ?46mm ID frame shell.
      2.Precision injected plastic BB cups / shell with bearings.
      3.Designed to withstand high impact riding styles.
      4.High Quality Bearings for smooth pedallings.
    Bottom Bracket
    • Model No:
      BB-08-TRD-68
    • Product Description:
      1.Designed for Road Bikes.
      2.Titanium material for stronger and higher durability and great aesthestics.
      3.Fits Shimano BB Systems with BC - 1.37" English Thread.
      4.Smooth pedalling with enhanced seal drag reduction.
      5.Ceramic Bearings for e...
    Bottom Bracket
    • Model No:
      BB-08-XC-7368
    • Product Description:
      1.Designed for XC / All Mountain and other high impact riding styles.
      2.Aluminum Bearing Cups with Ceramic bearings.
      3.Fits Shimano BB Systems with BC - 1.37" English Thread.
      4.Exceptional smooth pedalling with enhanced seal drag reduction.
      ...
    Bottom Brackets
    • Model No:
      BB-05-GXP
    • Product Description:
      1.Aluminum Bearing Cups with high quality bearings.
      2.Fits SRAM GXP BB Systems with BC - 1.37" English Thread.
      3.Designed to withstand high impact riding styles.
      4.Smooth pedalling with enhanced seal drag reduction.
      5.3 colors for options.
    OFF Seatpost
    • Model No:
      XP-TEN
    • Product Description:
      1.3D forging method to achieve best ratio between light weight and stiffness.
      2.Using AL 2014 for better strength.
      3.10mm offset for wider seating range.
    Seatpost
    • Model No:
      XPZERO400
    • Product Description:
      1.Using Alloy 7050 for light weight option.
      2.Designed to with stand high impact riding styles.
      3.Precision CNC machined Alloy 7075 Head with Titanium Bolts for great fixing results on alloy railed saddles.
      4.?27.2 / ?30.9 / ?31.6mm OD for options...
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