Online: www.REI.com
URL for this product:

From the U.S. and Canada — Call 1-800-426-4840
Mon. through Sun., 4 a.m. through 11 p.m. PT.
International — Call 1-253-891-2500
Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.

OnGuard Bulldog Mini U-Lock

$21.93
$29.95^*

REDUCED PRICE You Save 26%

(8)

Item # 814979

100% Satisfaction Guaranteed
Gear and Advice You Can Trust

Orders of $50 or more ship for free. Learn more

To view videos or use the zoom feature on REI's websites, please download the latest version of Adobe Flash Player.

NOW PLAYING

OnGuard Bulldog Mini U-Lock may be mini, but it's certainly mighty, offering security for your bike and a compact size for easy transport and storage.

Lock uses the pick-, pull- and drill-resistant M-key Cylinder™ mechanism for excellent protection; integrated dust cover protects lock internals from the elements
Dual locking mechanism delivers enhanced strength and pull resistance by securing both sides of the bar
Features a massive 13mm (0.5 in.) hardened-steel shackle for strength
Includes 5 laser-cut keys, 1 of which has an integrated LED light
The OnGuard Bulldog Mini U-Lock is tough yet gentle on your bike's finish; plastic, rubber or vinyl is used where lock might contact bike

Imported.

Item 814979

How to Use Your 20% Off Coupon:

Online, at REI.com and REI-OUTLET.com

If you're an REI member: At steps 3 and 4 of checkout under REI Membership, enter your membership number and coupon code REIANNV. Note: Check "Use my dividend on this order" and we'll apply your dividend balance toward your purchase.
If you're not yet an REI member: Include an REI membership for a one-time $20 fee with your purchase and use coupon code REIANNV at checkout. (You won't have to enter a membership number.) Note: You will have the opportunity to buy a membership at checkout.
Coupon applies to highest-priced eligible item. Coupon good through 5/28.

AT REI STORES

If you're an REI member: At checkout, provide coupon code REIANNV (or a printout of this coupon) and your REI membership number to the cashier. Note: Ask to have your dividend balance applied toward your purchase.
If you're not yet an REI member: At checkout, include an REI membership for a one-time $20 fee with your purchase and provide coupon code REIANNV (or a printout of this coupon) to the cashier.
Coupon applies to highest-priced eligible item. Coupon good through 5/28.

BY PHONE: 1-800-426-4840

If you're an REI member: Provide coupon code REIANNV and your membership number when you call in your order. Note: Ask to have your dividend balance applied toward your purchase.
If you're not yet an REI member: Include an REI membership for a one-time $20 fee with your order and mention coupon code REIANNV .
Coupon applies to highest-priced eligible item. Coupon good through 5/28.

Exclusions:

Offer valid 5/17/12 9pm PT – 5/28/12 11:59pm PT.
Coupon (or coupon code) must be presented at time of purchase. Online and phone customers must use code "REIANNV" to receive this discount.
Offer valid at REI.com, 1-800-426-4840 and REI stores.
Offer not valid on REI-OUTLET.com items, REI Adventures or REI Outdoor School.
Offer not valid on sale items (prices ending in $ ._3 or $ ._9).
REI membership number is required at checkout. Not a member? You can join for a one-time $20 fee during checkout.
Offer not valid on special orders, package discounts, prior purchases, REI gift cards or e-gift cards, passes and tickets, gift boxes, memberships, shop services, rentals.
Offer not valid on bicycles, strollers, hard shell boats or stand up paddleboards.
Offer not valid on any item with GPS technology, personal locator beacons.
Offer is limited to stock on hand and backorderable items, is nontransferable and is not redeemable for cash.
Merchandise purchased with this offer is not eligible for the REI member refund.
Offer may not be combined with any other discount or offer.
Limit one coupon per customer.
To order by phone, call 1-800-426-4840 Mon. through Sun., 4am to 11pm PT.
Cashier Instructions: Apply 20% line discount to highest full-price item; please refer to exclusions.

View all OnGuard products

REI Membership

REI Membership $20.00

OnGuard Bulldog Mini U-Lock Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews

OnGuard Bulldog Mini U-Lock

3.0

(based on 8 reviews)

50%

of respondents would recommend this to a friend.

Pros

Easy to use (4)
Durable (3)
Lightweight (3)
Ultra strong (3)

Cons

Best Uses

City bikes (7)
Road bikes (4)
Mountain bikes (3)

- Reviewer Profile:
- Avid cyclist (4), Casual/ recreational (4)
- Was this a gift?:
- No (8)

Reviewed by 8 customers

Sort by

Displaying reviews 1-8

Mar

2011

(2 of 2 customers found this review helpful)

4.0

Good lock, perfect size

By SDHO

from Minneapolis, MN

About Me Avid Cyclist

See all my reviews

Pros

Easy to Use
Lightweight
strong

Cons

Poor holder

Best Uses

City Bikes

Comments about OnGuard Bulldog Mini U-Lock:

I got this for a bike I take between a fairly rural college campus and the city. At college, this lock is great for simply providing basic security and locking my wheel to my frame, preventing some drunk student from riding it away. Sure, I could do that with a cable lock, too, but this is just much easier, especially during the winter, when cables get very stiff. In higher-crime areas, it seems to be just the perfect size (using the Sheldon Brown lock strategy [@]). It also is small enough that I can mount it easily to the frame and still have plenty of room for a bottle cage.The mount is my only gripe: it was very difficult to get the lock in and out below freezing temperatures, and the tab broke off after about a week. I also learned the hard way the importance of getting everything TIGHT, because the lock will slide around very easily.

Comment on this review

Apr

2012

(1 of 1 customers found this review helpful)

4.0

Good compact secure

By denden

from Portland, OR

About Me Casual/ Recreational

See all my reviews

Pros

Easy to Use
Good Value
Lightweight
Ultra Strong

Cons

Requires some care

Best Uses

City Bikes
Mountain Bikes
Road Bikes

Comments about OnGuard Bulldog Mini U-Lock:

I use this to lock a recumbent with a 2" diameter frame. Still, it fits the bike and the usual 2" diameter bike rack. It weighs about 1 lb 12 oz, which is nice for a U-lock. Small, but just as strong as the high priced heavy stuff.

The operation of the lock requires that the hasp is completely seated before the key will turn easily. I suspect that the jamming some have experienced my be due to impatient forcing of the key when hasp still has tension on the mechanism. If the key does not turn easily, push the hasp in--then it works fine.

Comment on this review

Jul

2011

(1 of 3 customers found this review helpful)

1.0

Not durable

By Urban Commuter

from Minneapolis, MN

About Me Casual/ Recreational

See all my reviews

Pros

Cons

Best Uses

Comments about OnGuard Bulldog Mini U-Lock:

Bought for my son. Lasted 2 months and then the lock mechanism broke inside the cylinder and we were unable to get a key in it. Get a Kryptonite!

Comment on this review

May

2012

4.0

Does its job

By PK from CA

from CA

About Me Casual/ Recreational

See all my reviews

Pros

Cons

Best Uses

City Bikes
Mountain Bikes
Road Bikes

Comments about OnGuard Bulldog Mini U-Lock:

This lock and a cable are used in conjunction to secure my bike. It's small size is both a pro and con. Easy to carry on my bike rack, but does not fit bulkier bike racks or parking meters with wider posts.

I don''t use the mount, so can't comment on it. You have to take care that the u-portion is fully inserted into the lock portion for the mechanism to engage properly. Sometimes the yellow rubber pieces rotate and block the holes for the u-portion.

Comment on this review

Mar

2012

5.0

Perfect go-to lock.

By GnarRad

from East Bay, CA

About Me Avid Cyclist

See all my reviews

Pros

Durable
Easy to Use
Great Value
Ultra Strong

Cons

Best Uses

City Bikes
Road Bikes

Comments about OnGuard Bulldog Mini U-Lock:

This is a great lock. It's a serious heavy duty U-lock but it's small enough that it's easy to have on you whenever you need it. It has the same key design and lock cylinder placment as the top of the line Kryptonite series, for 1/3 the price. I've had mine for about 4 years, never had a problem with the mechanism jamming. (And while I live in CA now, 3 of those years were in Missouri, which has some of the worst weather in the country) I can't comment on the clip design, I never use them (I don't like the possibility of maring my frame's paint) I always either have it in my bag, or slipped through my belt.

One thing to realize is that with its small shackle you need to be selective in your choice of anchor. Parking meters work great, but some of the larger 'art-installation' bike racks are too big. For me it's an easy trade off, and it's never been a big deal.

Everyone should have a U-lock. Cables are fine for keeping your wheels or seat safe, but not as your main lock. If you're looking for one that does the job at a reasonable price, you can't do much better.

Comment on this review

Feb

2012

2.0

Not a great product

By Doc the biker

from The Dalles, OR

About Me Avid Cyclist

See all my reviews

Pros

Durable
Ultra Strong

Cons

Hard to Use

Best Uses

City Bikes

Comments about OnGuard Bulldog Mini U-Lock:

I have had a great many problems with this lock. First the plastic frame mounting bracket broke when I was riding over some rough pavement. Now, after weeks of struggling, the locking mechanism has failed completely and I can't turn the key in the lock more than halfway. Fortunately it wasn't locked up when it stopped working, so my bike is still available to me. I tried silicone spray and petroleum based lubricants both and the problem persists.

Comment on this review

Nov

2011

(0 of 1 customers found this review helpful)

1.0

Not so good locking mechanism

By usmcclintonbs

from Phoenix, AZ

About Me Casual/ Recreational

See all my reviews

Pros

Durable
Lightweight

Cons

Best Uses

City Bikes

Comments about OnGuard Bulldog Mini U-Lock:

I had this lock for about two weeks before it started to give me problems. The third week I was hammering the key in. Now, I don't use the key and just try and make the bike looked locked. I don't like this though because I don't want someone to take notice and steal my bike. I'll look into other reviews and pick another lock. I really don't like seeing other people with basic [@] locks having no problems.

Comment on this review

Aug

2011

3.0

Good lock for around town and campus.

By jwhicks

from Anchorage, AK

About Me Avid Cyclist

See all my reviews

Pros

Easy to Use

Cons

Yellow part gets in way

Best Uses

City Bikes
Commuting
Mountain Bikes
Road Bikes

Comments about OnGuard Bulldog Mini U-Lock:

Its works good enough. The yellow plastic part will sometimes get in the way of u-bar and can be a pain if you are in a hurry. Used mine going on 3 years with little problems.

Comment on this review

Displaying reviews 1-8

* Intermediate markdowns may have been taken.

How are we doing? Give us feedback on this page.