Serfas Speed Stem Bag (Product Review and Giveaway)

01 Apr

On the back of nearly every cycling jersey you will find three pockets and they are usually sufficient to carry a few carbohydrate gels and your cell phone. However, on longer rides you are going need more room to store extra gels, bars and drink mixes (unless you are one of those folks who stops at every convenience store they pass). My favorite way to add a little carrying space on my bike is with a top tube bag. Most of these bags attach to the bike with a couple of Velcro straps—one strap goes around the top tube and the other around the stem tube. I own several different styles of top tube bags and recently the folks at Serfas sent me a Serfas Speed Stem Bag to review and it quickly became one of my favorites!

Serfas Speed Stem Bag

Serfas Speed Stem Bag

The Serfas Speed Stem Bag is made of 100% polyester and only weighs 4.2 ounces (119 grams). The medium-sized bag (the one in the photo above) measures 8.75″X3.5″X2″ and has 61 cubic inches of storage space—enough space to hold a dozen packages of carbohydrate gels. If you don’t need this bag to carry your carbohydrate gels or bars, you could always use it to keep cell phone close at hand. The inside of this bag is lined with a soft Microfiber fabric and the top of the bag (the lid) is made of mesh so you can see inside the bag as you are riding. However, if you are going to be riding on a rainy day I would strongly suggest you keep your phone in a Ziplok bag to keep it dry.

Serfas Speed Stem Bag

Serfas Speed Stem Bag with Mesh Top

The most unique feature of this bag is the way it closes. This bag has a magnetic strip along the top and when you flip the lid to the closed position it automatically catches and seals itself shut—you could do it blindfolded! I’ve not had any trouble with this bag accidentally opening, but I would not recommend it to those of you who enjoy jumping your bike off of the roof of your house—I don’t imagine the magnetic strip could handle a jolt like that.

3M Scotchlite Reflective Material On The Sides

3M Scotchlite Reflective Material On The Sides

On the sides and back of this bag is a strip of 3M Scotchlite Reflective Material. When the headlights from a car hit this reflective material it bounces the light back and makes you extremely visible. I ride a lot in low-light situations and wish that all of my gear had a piece of reflective material like this!

The medium-sized Serfas Speed Stem Bag retails for $33 and is available from the Serfas Website, as well as most bike shops and They also have a smaller bag (6.25″X3.5″X2″) with 42 cubic inches of space at it retails for $30. Both sizes of this bag are available in three different colors (Red, Black, or Grey). The only drawback of top tube bags is that it is possible they could get in the way when you stop if you have an extremely short-frame bike (I had no trouble at all).

The folks at Serfas gave this bag to me for review and I told them I would be having a contest to give it away when the review was finished. I now truly regret telling them that because I really like this bag. So, I am keeping the one they sent me, but I purchased (at full retail price) another one so I give it away to one of my readers.

If you would like a chance to win a brand-new medium-sized Serfas Speed Stem Bag then leave a comment below telling me why you need this bag. The contest ends at midnight (CST) on Friday, April 5, 2013. After the contest closes I will read through the comments and choose a winner based solely on my incredibly subjective mood at the time—however, humor in your entry is highly encouraged (just keep it clean). The last time I ran a contest like this several readers “donated” their entry to other contestants (something I had not planned on). So, if you don’t need this bag yourself you are free to comment on other entries. So I can remain impartial until the contest is over I will not be responding the comments. This contest is for U.S. residents only and only one entry per household allowed. I will send this product to the winner via U.S. Mail at my expense. Good luck!


Tags: , , , ,

30 responses to “Serfas Speed Stem Bag (Product Review and Giveaway)

  1. Chatter Master

    April 1, 2013 at 5:06 AM

    I need it so I can be just like you. 🙂

    Does adding the smiley face make this less true? Of course not!

  2. forsair

    April 1, 2013 at 5:14 AM

    Why do I need this bag? I live in a somewhat rural and hilly community and convenience stores are few and far between. I cycle alone most of the time and am a big fan of self rescue, meaning I try to avoid needing rescue by avoiding trouble in the first place. I’ve been avoiding riding locally for a number of reasons, but one of them is that resupply on the road is very rare and I have fear of bonking many hilly miles from home with no means to resolve the issue. Extra space would be a boon. I tend to pack the bike in the car bring it to work which does have more amenities nearby. I’d like start riding from my door more often and feel more confident upping the mileage when I do so.

  3. Chatter

    April 1, 2013 at 5:36 AM

    Not humorous, but I am getting ready to ride a century to raise money for Diabetes soon…Sure would be handy. Of course I am a swell guy as well.

    • Ed

      April 1, 2013 at 5:01 PM

      I was going to write a response about my plan to start doing some centuries. I happened to read Chatter’s comment and think it is a very worthy cause and think he deserves it!

  4. hughonabike

    April 1, 2013 at 6:56 AM

    The chance of a free bag is too good to miss, free beer would be better but what the heck. If I win ( and I hope I do) I would like to donate it to CHATTER cos he’s a swell guy.

  5. springsyetiGreg

    April 1, 2013 at 7:47 AM

    The color matches my heart. I do some distance rides and have dropped gels and bars retrieving them from my jersey and have looked at buying one… But if I were to get a free one I wouldn’t have to buy one..

  6. Mountainstroh (Tony)

    April 1, 2013 at 9:11 AM

    Good morning! I wold like is bag because I am an ex science teacher geek who loves the fact it uses a magnet instead of Velcro or a zipper to close, because I am going to start bike commuting, so my badge and phone would be perfect there, and my poor bike has been through hell and deserves something new and flashy.

    Great review!

  7. Laura

    April 1, 2013 at 9:22 AM

    I ride with crazy bicycle guys who are out in all weather at all hours. I’ve decided to join them on a Summer Solstice Ride, which they have planned to be about 150 miles in a single day. This stem bag would make me a much more “hip” and “with-it” addition to the group by storing my snacks appropriately – instead of wearing a uber-dorky backpack of snacks and gear.

    Many thanks for considering my plight. 🙂

  8. Randy

    April 1, 2013 at 10:55 AM

    The bag would be a great addition to my first road bike (Felt Z4) that should arrive this Friday,
    This will be my 2nd year of cycling and trying to gear up has been a challenge. Looking forward to some longer rides with you this summer.

    • Laura

      April 7, 2013 at 10:43 AM

      Just want to say, as a fellow Felt rider (ZW5), you have impeccable taste in bicycles. 🙂

  9. siwhi

    April 1, 2013 at 11:24 AM

    It seems that while I need this bag I also need to move to the US in order to be able to win it! It looks fab and would be a great compromise between just shoving stuff into my shirt pockets and riding with a rucksack on. I’m doing a 350 mile charity ride so space for a camera easily to hand and easy to access would be fab too. Hope the winner gets loads of use out of it. Suspect I’ll be buying one for shipping to the Uk

  10. Tim Rice

    April 1, 2013 at 12:16 PM

    I need….. as it matches my Serfas EV-3 large saddle bag. Oh and also because I am riding my first 2 day Charity tour this year in July. 84 miles each day, that’s a lot for me.
    My only issue with a 56cm frame I am thinking I might want the 6.25″ bag instead of the 8.75″ stem bag. So Win or Lose, no biggie seeing how I am confused.
    The real win for me here would be if “All season Cyclist” gave me his frame size. So that I might know (*cough* be less confused) if I want the 8.75″ or the 6.25″ Serfas bag in grey. Again to match my awesome Serfas saddle bag!

  11. Terri Shade

    April 1, 2013 at 1:01 PM

    I would love this bag – its not the bike…its the accessories…LOL…It will go with my glasses!
    It would be great to hold the iphone and a license while riding.
    Doing my 4th TDP (breast cancer) ride – 250+ miles from Philly to DC this year..

  12. mcmorg

    April 1, 2013 at 1:04 PM

    Why? Winning is more fun than not winning.

  13. anniebikes

    April 1, 2013 at 1:33 PM

    Looks like great place to store a camera on the GAPCO ride with hubby and friend I plan on doing later this year. But ssshh. Keep it under wraps. I don’t plan to reveal this adventure to my readers until early summer.

  14. Shonnie

    April 1, 2013 at 1:39 PM

    I don’t like to wear the bike jerseys. Those pockets make me super hot. If I wore them I would have to fill them with Ice packs — so this would be a great thing for me to have! Thanks for sharing.

  15. Sandra

    April 1, 2013 at 1:58 PM

    I cannot find a bike jersey that fits me either–so no pockets for me. I tried the side pockets on my tri shorts, but when I’m pedaling at over a 90 cadence, things go flying–not good for the riders behind me when I’m traveling with fish hooks or tacks (I only do this on special occasions). Furthermore the little triangular bags that fit under the seat on the frame are impossible to see past my knockers, so I need something in front of me to hold my EpiPen, phone, fuel, and little camera. Besides, I’m rather new at this riding thing and having both my hands on the “wheel” is imperative–I tend to wobble horribly otherwise. The magnetic strip was made for idiots like me! I’m a danger to other riders, save them, let me win this Serfas bag.

  16. Urban Rider

    April 1, 2013 at 4:46 PM

    I have never seen a top tube bag that site on top of the tube. Excellent idea. I never really cared for the one that hangs below the tube.

  17. bgddyjim

    April 1, 2013 at 7:11 PM

    Both Laura and Sandra are blog-buds of mine and both are incredibly deserving. Chatter, on the other hand, is one heck of an amazing story. In the end, Sandra has helped me deal with my dad’s Alzheimer’s so she holds a special place in my heart – my vote goes for Sandra.

  18. melissakoski

    April 1, 2013 at 9:13 PM

    I love the basis of winning. You have the power! (:

    I think I need the Serfas Speed Stem Bag because I don’t have a bag to carry my pepper spray and I bike alone.

    Also the bike shops in the area have a very limited selections of women’s gear and it seems the small sizes are either 1) not stocked or 2) I am being out shopped by some i bshopping savvy women. (and who has ordered all the women’s size small biking socks in the entire world?!?)

    My final point is the single mom sob story bit. blah blah blah

    I think I DON’T need the bag because 1) I don’t have a cause helping other people… helping others is the most important thing a person can do. 2) I am very blessed to have lovely lights for my bike AND helmet thanks to a great man’s generosity…. so I have had my turn at receiving free gifts. (though I HAVE had to battle my kids to keep the lights on my bike and helmet. It turns out they can also be used as handy flash lights and/or disco dancing lights.)

    I’m enjoying the “sore sit bones season” between our last snowfalls! Will the warmth arrive? (:

  19. Irish Katie

    April 1, 2013 at 9:27 PM

    Hmmm …. does it fit on the down tube for a woman’s style bike I wonder? No … I bet all the gel packs and cookies and stuff would fall out. Then I would have to stop and people would stare at me because it would look like I stopped to pick up cookies on the road. Ewww. (Of course, if they were GOOD cookies I might do that.)

    Hmmm … I think I want to donate my vote to Laura … because she used the word ‘dorky’….and I really, REALLY like that word haha.

    By the way, that was super nice of you to go out and buy another tube bag so you could contest it away.

  20. billgncs

    April 1, 2013 at 11:19 PM

    Well, since you asked, I need this bag to hold the magic dust that I sprinkle on everyone in the cars who looks so unhappy as I ride by.

  21. oneluckiegirl

    April 2, 2013 at 7:28 AM

    If I didn’t already have 2 bento boxes I would pounce on trying to win one of these!
    I will be watching closely for a chance to win a set of electronic shifters!!!! Hey, a girl can be hopeful!!!
    I truly DO appreciate your reviews.

  22. matt warriner

    April 2, 2013 at 11:26 AM

    I need it because I’m riding my first RAGBRAI this year, and it’d be great to keep my nutrition handy with 🙂

  23. Howard Patner

    April 4, 2013 at 11:58 AM

    I don’t actually need a stem bag as I am fine packing my pockets with everhything I need for a ride and wouldn’t know what to do with something that would help make essential items like facial tissue, cell phone, Gu, keys, ID, and money more easily accessible during a ride. Its not like I weave all over the road adn cause accidents or anything when I am reaching and searching for something. 🙂

  24. adventurefoot

    April 4, 2013 at 10:09 PM

    Well my husband’s always calling me “the old bag” so I thought maybe if I had a new one…


  25. elisariva

    April 6, 2013 at 8:55 AM

    Great review! You wrote that requests to win had to be in by Friday April 8. I am writing Saturday April 6! Not sure if I am in time or late! Regardless, here is my request. I currently have two top tube bags on my bike to accommodate my needs. Both zip, which is difficult to maneuver when riding. Worse yet, one bag is on my seat tube backward making it more difficult to access. The Serfas Speed Stem Bag would be perfect for my needs! Only one bag, it would look awesome on my bike, and I promise I won’t ride off my roof!

  26. All Seasons Cyclist

    April 6, 2013 at 12:09 PM



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

Israel's Good Name

Voyages and Experiences in Israel


...finding perfection in imperfection daily.


Cycling, pro cycling, and other stories

Ferrell's Travel Blog

Commenting on biblical studies, archaeology, travel and photography


Steve Wolfgang's view of the world from suburban Chicago -- or wherever he may be on any given day

It's A Marathon AND A Sprint

And a 10K and a 200 Mile Bike Ride and an Obstacle Race and Anything Else We Find!

Shannon E. Williams

Gather. Discover. Cultivate.

the drunken cyclist

I have three passions: wine, cycling, travel, family, and math.

Long Distance Cycling Cleveland

We host a series of long distance preparation rides each weekend from January - June in the Cleveland, Ohio area


healthy tasty food that I love to make and eat and share


Diabetes, Cancer Survivor, Cycling, Photographer, Exercise, College Parent, Twins, Boy Scout Leader, Life

Travel Tales of Life

Never Too Old To Explore

Fatbike Brigade

Exploring the world on fatbikes


What happens when a medical doctor becomes a stay-at-home, homeschooling mom

Raising Jordans

early and special education


Running and Laughing through the Golden State


Inspiring Your Outdoor Adventures

Scott Silverii Ministries

Putting The Hero Back In Action


Always Thinking, Reading About, and Up To Something

Oregon Coast Cyclist

Adventures of a cyclist living in Lincoln City Oregon

A Promise to Dad

"You don't have anything if you don't have your health"

The Chatter Blog

Living: All Day Every Day: Then Chattering About It

chasing mailboxes

one good thing. washington d.c.

Fit Recovery

Stay Clean Get Fit

Nancy Loderick's Blog

Musings on technology, marketing and life.

MTB blog from super happy Tokyo girl!

~マウンテンバイク初心者女子のチャリ日記~ Play hard, Ride tough, Eat a LOT then you got nothing to worry about!

Move and Be Well

Empowering others to find their balance of movement, nourishment, and self-care.

Dr. Maddy Day

Let's unpack your nutritional and emotional baggage.

Sip, clip, and go!

Cycling, off and on the road, in Western Mass

She's Losing It!

Fitness Book for Moms

Survival Bros by Cameron McKirdy


Muddy Mommy

Adventures in Mud Racing, Marathons, & being a Mommy!

wife. mother. awesome girl.

just enough ahead of the curve to not be off the road completely

A sport-loving chiropractor's blog about adventures in health, fitness, and parenthood.


Running Toward: Health, Wellness & PEACE ............................................ Running From: Insanity, Screaming Children, Housework & a Big Ass


Seizing life's joys and challenges physically, mentally, and emotionally.

arctic-cycler goes global.

%d bloggers like this: