DT Swiss HGC 1400 Spline 30 Rear Wheel - 700c 12 x 148mm Center-Lock HG11 Road/XDR Ratchet EXP OS 30 BLKDT Swiss HGC 1400 Spline 30 Rear Wheel 700c 12 x 148mm Center Lock HG 11 Road Ratchet EXP OS 30 Black. While DTs Hybrid Endurance wheels are made to deliver maximum speed on tarmac the Hybrid Gravel wheels will deliver maximum fun on gravel roads. The HGC 1400 Spline is the exclusive answer for all high end E gravel bikes that set the benchmark in a new cycling segment. With a select mix of high end E specific components this wheel has the pedigree to