Have 2 of these Kryptoflex loops and can highly recommend. The thinner is intended for the saddle, with 10mm for the front wheel. Will be threaded through and then in the right lock hooked (I use a Abus Bordo). Against casual thieves also reaches the thinner front for thinking I both look very stable. The only downside: It seems a little paranoid when the wheel is laced in full gear ;-) but I do not care because I already 2 whole bicycles + various parts have been stolen in the last 12 months.
