Bicycle U-locks

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Kryptonite KryptoLok Series 2 Mini-7 U-Lock with 4' Flex Cable and Bracket: 3.25 x 7"
Kryptonite KryptoLok Series 2 Mini-7 U-Lock with 4' Flex Cable and Bracket: 3.25 x 7"Kryptonite

Hardened Performance steel shackle with classic bent foot design and a patented deadbolt locking mechanism offers theft protection. Security Rating: … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

18% offretail $46.95 Sale Ends 9/15! $38.66 + ships free

BuyBuyPART NUM 472332
Kryptonite KryptoLok series 2 STD U-Lock with 4-foot Flex Cable and Bracket: 4 x 9"
Kryptonite KryptoLok series 2 STD U-Lock with 4-foot Flex Cable and Bracket: 4 x 9"Kryptonite

Transit Flex Frame Bracket system fits on the adjustable spline and allows for multiple, off-set fitments to better align the lock for transportation … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

19% offretail $49.95 Sale Ends 9/15! $40.46

BuyBuyPART NUM 889328
Kryptonite New York Lock Fahgettaboudit
Kryptonite New York Lock FahgettabouditKryptonite

Quite possible the strongest U-lock for bicycles in the World! Our Extreme bicycle U-lock handles the urban areas, college campuses and other high theft … read more

$21 offretail $113.95 Sale Ends 9/15! $92.66 + ships free

BuyBuyPART NUM 304878
Kryptonite New York STD U-Lock with Bracket: 4" x 8"
Kryptonite New York STD U-Lock with Bracket: 4" x 8"Kryptonite

The Kryptonite New York U-Lock is the highest security Kryptonite U-lock available. Hardened MAX-Performance, 16mm steel shackle resists bolt cutters … read more

StarStarStarStarStar 5 of 5 ( 3 ) 5 of 5 stars average ( 3 reviews )

$19 offretail $102.95 Sale Ends 9/15! $83.66 + ships free

BuyBuyPART NUM 996864
Kryptonite Evolution Mini-7 U-Lock with Cable: 3.25" x 7"
Kryptonite Evolution Mini-7 U-Lock with Cable: 3.25" x 7"Kryptonite

The Kryptonite Evolution Series are constructed of hardened steel and provide top notch security. Hardened MAX-Performance, 13mm steel shackle resists … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

18% offretail $70.45 Sale Ends 9/15! $57.56 + ships free

BuyBuyPART NUM 106136
OnGuard Bulldog Combo U-Lock: 4.5 x 9"
OnGuard Bulldog Combo U-Lock: 4.5 x 9"

The On Guard BullDog U-Locks are constructed of 13mm hardened ultra steel shackle with a reinforced sleeve over crossbar and cylinder for added security. … read more

25% offretail $39.95 your price $29.99

BuyBuyPART NUM 699187
Kryptonite Messenger Mini Plus U-Lock: Black
Kryptonite Messenger Mini Plus U-Lock: BlackKryptonite

Wider, longer mini with the wheel extender for more variety in how and where to lockup. Reduced shackle diameter to 11mm for decrease weight … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

19% offretail $85.95 Sale Ends 9/15! $69.26 + ships free

BuyBuyPART NUM 189316
Krypto series 2 mini-7 U Lock: 3.25 x 7" White
Krypto series 2 mini-7 U Lock: 3.25 x 7" WhiteKryptonite

Hardened Performance steel shackle with classic bent foot design and a patented deadbolt locking mechanism offers theft protection. Security Rating: … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

9% offretail $42.95 your price $38.95 + ships free

BuyBuyPART NUM 844208
Kryptonite Evolution series 4 U-Lock: 4" x 9"
Kryptonite Evolution series 4 U-Lock: 4" x 9"Kryptonite

The Kryptonite Evolution Series are constructed of hardened steel and provide top notch security. Hardened MAX-Performance, 14mm steel shackle resists … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

19% offretail $77.95 Sale Ends 9/15! $62.96 + ships free

BuyBuyPART NUM 828007
OnGuard Bulldog Combo Lock DT 8012c
OnGuard Bulldog Combo Lock DT 8012c

X2P Double Bolt Locking Mechanism locks shackle on both sides Combo u-locks feature steel ball Click-Combo-Gear System that is user settable … read more

your price $37.86 + ships free

BuyBuyPART NUM 829524
Kryptonite KryptoLok Combination U-Lock: 4" x 8"
Kryptonite KryptoLok Combination U-Lock: 4" x 8"Kryptonite

The Kryptolok features a Center Key locking design and a high security pick and drill resistant disc-style cylinder. Center Key Locking mechanism for … read more

19% offretail $47.95 Sale Ends 9/15! $38.66

BuyBuyPART NUM 399275
Krypto series 2 mini-7 U Lock: 3.25 x 7" Orange
Krypto series 2 mini-7 U Lock: 3.25 x 7" OrangeKryptonite

Hardened Performance steel shackle with classic bent foot design and a patented deadbolt locking mechanism offers theft protection. Security Rating: … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

9% offretail $42.95 your price $38.95 + ships free

BuyBuyPART NUM 144725
OnGuard Bulldog U-Lock Double Team 8012
OnGuard Bulldog U-Lock Double Team 8012

Onguard has made improvements to all Bulldog series U-Locks. All Bulldog's now feature the slimmer crossbar dimensions found previously on the "TC" models … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $29.99

BuyBuyPART NUM 942226
OnGuard PitBull U-Lock with Bracket: 3.5 x 5.5"
OnGuard PitBull U-Lock with Bracket: 3.5 x 5.5"

The On Guard PitBull U-Locks feature 8.4 Tons of pull strength plus higher quality lock cores. Keyed locks include five European-style keys, (1 lighted) … read more

44% offretail $49.95 your price $27.99

BuyBuyPART NUM 163240
Kryptonite KryptoLok series 2 STD U-Lock with Bracket: 4 x 9"
Kryptonite KryptoLok series 2 STD U-Lock with Bracket: 4 x 9"Kryptonite

Transit Flex Frame Bracket system fits on the adjustable spline and allows for multiple, off-set fitments to better align the lock for transportation … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

20% offretail $45.95 Sale Ends 9/15! $36.86 + ships free

BuyBuyPART NUM 644786
Kryptonite KryptoLok series 2 LS U-Lock with Bracket: 4 x 11.5"
Kryptonite KryptoLok series 2 LS U-Lock with Bracket: 4 x 11.5"Kryptonite

Transit Flex Frame Bracket system fits on the adjustable spline and allows for multiple, off-set fitments to better align the lock for transportation … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

20% offretail $44.95 Sale Ends 9/15! $35.99 + ships free

BuyBuyPART NUM 191960
OnGuard BullDog LS U-Lock with Bracket: 4.5 x 11"
OnGuard BullDog LS U-Lock with Bracket: 4.5 x 11"

The On Guard BullDog U-Locks are constructed of 13mm hardened ultra steel shackle with a reinforced sleeve over crossbar and cylinder for added security. … read more

29% offretail $39.95 your price $28.49

BuyBuyPART NUM 346681
Krypto Evo LITE Mini-6 U Lock 2.75 x 5.9"
Krypto Evo LITE Mini-6 U Lock 2.75 x 5.9"Kryptonite

The Kryptonite Evolution Series are constructed of hardened steel and provide top notch security. Very lightweight at 747 grams (16% lighter than … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

10% offretail $72.95 your price $65.95 + ships free

BuyBuyPART NUM 812066
Kryptonite Keeper Standard U-Lock: 4" x 9"
Kryptonite Keeper Standard U-Lock: 4" x 9"Kryptonite

Kryptonite Keeper U-Locks feature a hardened steel shackle that resists hand tools for security in low crime areas. 12mm hardened steel shackle resists … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

17% offretail $24.95 Sale Ends 9/15! $20.69

BuyBuyPART NUM 261791
Kryptonite Evolution series 4 LS U-Lock: 4" x 11.5"
Kryptonite Evolution series 4 LS U-Lock: 4" x 11.5"Kryptonite

The Kryptonite Evolution Series are constructed of hardened steel and provide top notch security. Security Rating: 9 out of 10 Hardened MAX-Performance … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

19% offretail $78.95 Sale Ends 9/15! $63.86 + ships free

BuyBuyPART NUM 381446
Kryptonite

"The people at Kryptonite have a pure passion for creating the best security in the world. It's their innovative product designs, intimate knowledge of market trends and complete commitment to customers that will continue to keep the competition striving to reach the high bar Kryptonite sets and allows their customers to feel free to stop wherever they want."

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Serfas

"Wherever your road leads we know cyclists seek the ultimate ride. With that in mind, Serfas is always striving to make products that reflect those wants and needs. Our 20-plus year commitment to quality, performance and customer service is reflected in our innovative products that are rider-tested and rider approved."

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