DT Swiss HGC 1400 Spline 42 Rear Wheel - 700 12 x 142 Center-Lock HG/XDR Ratchet 24 BLKDT Swiss HGC 1400 Spline 42 Rear Wheel 700 12 x 142 Center Lock HG XDR 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 be the uncontested King