These days, you just can’t take the chance with taking your bike anywhere without making sure its secure. The Trek Streetwise U-Lock is a good choice for protecting your baby, with its 13mm hardened steel shackle and crossbar. You have some choices as to where you want to mount it too, with a versatile EZ-Mount bracket. There is also a nice $1,000 anti-theft protection offer, giving you some more comfort with the lock. A rotating dust-cover keeps debris out of the key entryway. It is also pick-proof, with a high-security disk cylinder. You can purchase the Trek Streetwise U-Lock at the Trek online shop for $34.99 to $39.99.