Happy Holidays to All!
Version 3.0 ~ Gray & Black
Version 3.0 ~ Mesh pocket side of bag with a Velcro closure.
Version 3.0 ~ Turquoise. Note that the straps of the bag are plenty long...esp. for fatter carbon fiber designs.
Version 3.0 ~ Red & Black
Version 3.0 ~ Slate Blue
Version 3.0 ~ Purple
Version 3.0 ~ Mandarin Orange
Version 3.0 ~ Hot Pink
Version 3.0 ~ Lime Green
Version 3.0 ~ Light Camo color
Version 3.0 ~ Dark Camo color
Version 3.0 ~ One of the “bright” one-of-kind Crazy Quilt color schemes...color combinations are assorted, no choice.
Version 3.0 ~ One of the “dark or muted” one-of-kind Crazy Quilt color schemes...color combinations are assorted, no choice.
Version 3.0 ~ Detail shot of one of the Crazy Quilt color schemes (assorted, no choice).
Version 3.0 ~ One of the “dark or muted” one-of-kind Crazy Quilt color schemes...color combinations are assorted, no choice.
Version 3.0 ~ Some of the Crazy Quilt color choices. Some are bright, some are not!
A vinyl wallet or smart phone will fit into the zippered pocket (Medium shown).
The bag will hold one or two tubes with other tools.
Optional Fuel Box holds real food or tech food for eating “on the run.”
Optional fuel box fits in any of our top tube bags.
Version 3.0 ~ Placing a small battery in the mesh side pocket enables powering of a GPS (or light) for longer rides.
Version 3.0 ~ The zipper opens in such in a convenient manner for GPS or light battery cables (version 4.0 has a cable port on the end).
Version 4.0 in Gray & Black (other colors are the same as the 3.0s)
eoGEAR Large Century Bag
Side view of Version 4.0 (in Dark Gray & Black).
Version 4.0, unlike previous models, has an angled shape—narrower in the back where your knees pivot up and down.
Bright interior throughout.
Outside pocket with a zipper (on 3.0 & 4.0 both).
Version 4.0 features an inside “slip pocket” for flat items like a phone, battery pack or Vinyl Wallet.
Version 4.0 features a cord port for charging GPS units or lights.
Version 4.0 has grippy rubberized fabric strips on the back portion of the bag to prevent sideways flopping.
The stem strap is vertically adjustable. Also shown is the optional Spacer Pad.
Comparison of a Medium and the Large sizes. The Large is 15mm (5/8") wider & little taller.
The Medium is 1/2" wider than the Small. The Medium & Large and about the same width, but the top edge is shaped differently.
Please follow the instructional captions in the following photos.
1) On most models the stem strap can be adjusted vertically. For more stability, set it to the highest position your stem will allow.  Be sure the doubled over portion of the strap is facing inward (see the next photo for clarification). 2) Cinch down the other straps—in particular, the rear strap should be VERY TIGHT. 3) The Cord Port enables you to run a USB cord from the inside of the bag to your GPS, while keeping the weather out. NOTE: the label may be on the opposite side on some models.
SPACER PAD INSTRUCTIONS: 1) Remove the stem strap from the bag. 2) Gently feed the strap through one of the pad holes, keeping the doubled over portion to the inside. 3) Feed the strap through the slot on the bag & back through the other hole of the pad. 4) Then snug up the pad so it is flush against the bag.
Version 3.0 ~ Gray & Black

eoGEAR Large Century Bag

Our most popular size.

This top tube bag will attach to nearly any bicycle: road, mountain, urban, gravel, cross, tandem* or recumbent*.

  • The main zipper can be operated with one hand while riding.
  • In addition to the main compartment, there are two pockets, one on each side of the bag. On one side is a zippered fabric pocket for cash, I.D. etc. On the other side of version 3.0 is an exterior mesh pocket with quick-access Velcro closure for small accessories or with version 4.0, it has an inside slip pocket.  
  • The exterior of the bag constructed of rugged 400-denier Nylon Pack cloth & 420-denier Ripstop Nylon fabric, with a water-repellent coating on the inside of the fabric (we don’t use cheap polyester fabrics like some imported bags).
  • The main compartment has heavy-duty #8 water-repellent zipper (unlike most other manufacturers which use a smaller, less durable #4 or #5). It opens from the front, so you can use it for stowing an external battery packs for powering your light or GPS.
  • This bag will hold one or two tubes, two CO2 cartridges, a small tool and a couple of tire levers.
  • The bag attaches with three hook & loop straps (we don’t use elastic that will stretch out over time).
  • Available in various colors
  • Reflective strips on each side for use in dim light or night riding
  • 3mm closed-cell foam padding on bottom for protection of electronics against vibrations of road or trail (version 4.0 also has padding on the sides).

Version 4.0 is coming in August of 2023

  1. It is the same size as version 3.0 except we modified the curve of the main zipper to accommodate slightly larger phones.
  2. It now has tapered profile (narrower at back toward near your knees).
  3. Instead of a mesh pocket on the outside, we added a sleek “slip pocket” on the inside. There were isolated complaints of the mesh pocket rubbing against people’s knees. 
  4. In conjunction with the inside “slip pocket” we added a covered cable port, ideal for stowing an external battery for your light or GPS. 
  5. In addition to foam padding on the bottom, the side walls on the 4.0 also have foam padding providing a slightly more rigid bag.

Crazy Quilt

For the wacky Crazy Quilt color scheme, we take scraps of fabric, that otherwise might get tossed, and hand cut them for use in this bag (aka upcycling). The color mixtures are totally random. This hand cutting does requiring more labor, hence the increased cost. For roadie use, we like the  bright colors and increased visibility which most of these bags will provide!


  • Some cyclists do not like having a bag on the top tube as it may interfere with their knees, especially while standing up to pedal.
  • We have had isolated reports of paint rubbing off caused from the straps or fabric on this bag. You may want to apply a piece of clear frame protection film, ISC or so-called “helicopter” tape to your top tube or stem.

    Optional Accessories

    • A Spacer Pad provides some space between the bag and bolts of your stem. Some people find the steering is smoother with this, but it is strictly optional (# 2459).  If your stem sits really high on the fork, with a bunch of spacers, then a Spacer Pad is not really needed.
    • The main compartment is sized to hold our exclusive Fuel Container (# 2451) — no more messy food in your jersey pockets
    • The outside zippered pocket is specifically designed to hold the optional Liberty Mountain Vinyl Wallet (# 4915)
    • Tandems or “bents” may require a pair of our #2446 Extension Straps for the bottom Velcro-like straps as the top tubes of these bicycles are larger in diameter.

    Phone Compatibility

    These bags fit the following: standard sized iPhone X, 11, 12, 13, 14, 15 etc. and many Samsung Galaxy S-series phones all with a “normal-sized” case or many larger “max sized” iPhones w/o a  case.*

    Large Century Bag, version 3.0:
    The maximum size smartphone, including the case, that will comfortably fit in this bag is 160mm x 80mm (6-3/8 x 3-1/8"). 

      Large Century Bag, version 4.0:


      The maximum size smartphone, including the case, that will comfortably fit in this bag is 165mm x 85mm (6-½ x 3-3/8"). A phone up to 183 x 93mm (7-¼ x 3-⅝") will fit, but only if it is stowed at an angle and the phone requires a little work to insert or extract. 
      Otherwise, we recommend the X-Large Century Bag instead (SKU # 2008).

      *A slim or “minimalist-sized” case is one that adds 8 to 10mm (up 3/8") to the total outside dimensions of a naked phone. 

      Independent Product Review

      See this review from Bicycle Times magazine.

      Richard’s Recommendation

      On longer brevets or double-centuries, where one is frequently riding in the early morning or evening hours which necessitates wearing a jacket covering your jersey pockets — this bag serves as a practical substitute for stowing and accessing the gear or food that is commonly kept there.


      These bags attaches to any top tube with a circumference up to 18cm (7"). If you are using a tandem or recumbent with larger-than-typical top tube tube size, then purchase the optional Top Tube Bag Extender Straps (# 2446). They can also be used on the stem strap of any our top tube bags, but typically that strap is more than long enough for the common 1-⅛" (28.6mm) threadless stems.

      Version 3.0

      Weight (standard colors): 88 g (3.5 oz.)
      Weight (Crazy Quilt colors): approx. 88 g (3.5 oz.); some will weigh more due to the heavier “upcycled” fabrics that are used.
      Volume: 870 ml (50 cu in)
      Inside Dimensions (bottom of the bag at the widest point): 
      10.5h x 20.0w x 4.4d cm (3.9h x 7.9w x 1.75d")
      Outside Dimensions: 11.5h x 21.0w x 4.7d cm (4.5h x 8.25w x 1.85d")

      Version 4.0

      Weight: 104 g (3.7 oz.)
      Volume: 870 ml (50 cu in)
      Inside Dimensions (center of the bag at the widest point): 10.0h x 20.5w x 5d* cm (3.9h x 7.9w x 1.75d")
      Outside Dimensions: Add about a cm or ¾" to the above dimensions.
      *This dimension is at the center as the bag width tapers from 3.75–6cm (1.5–2.4").

      eoGEAR Version 3.0: SKU # 2006-LQ3 (Crazy Quilt), 2006-LG3 (gray), 2006-LR3 (red), 2006-LK3 (black), etc. Version 4.0: 2006-LQ4, 2006-LG4 (gray), 2006-LR4 (red) etc.

      Designed and Crafted in USA

      made in usa