GTMRK is expanding its suspension portfolio with the 588TA and 850TA air forks, along with the SP-02 dropper post, targeting MTB, E-MTB and Gravel applications while offering OEMs greater flexibility across different bike platforms.

The 588TA air fork features a dual air chamber system with 120, 140 and 160 mm travel options for 24- and 26-inch wheels. It uses 34 mm AL7075 stanchions with hard-anodized finish, magnesium lower legs and a 15×110 mm Boost thru-axle. HL, HLR and RA damping options are available to suit different bike specifications and riding requirements.

For more demanding applications, the 850TA is designed for 27.5- and 29-inch wheels, with 140, 160 and 180 mm travel. It features 36 mm AL7075 stanchions, magnesium lowers, a 15×110 mm axle and direct mounting for 180 mm brake rotors, making it suitable for All-Mountain, Enduro and E-MTB platforms.

The SP-02 dropper post is made from AL7075 aluminum and uses internal cable routing with remote operation. It is available in 30.9, 31.6, 33.9 and 34.9 mm diameters, with travel ranging from 60 to 175 mm. Models with an “S” suffix also incorporate suspension functionality.

Founded in Shenzhen in 2013, GTMRK’s parent company, Lizhixin Technology, specializes in bicycle suspension systems and provides integrated R&D, manufacturing, testing and OEM/ODM services. With more than 20 proprietary patents, an in-house testing laboratory and three automated production lines, the company continues to strengthen its role in the global bicycle component supply chain.