Happy Holidays to All!
View showing the rear of the bag.
This bag has one zippered pocket which is accessible while the bag is closed.
This bag has two side mesh pockets with an elastic top. (Outdated photo...seatpost attachment is different now).
Outdated photo: the bag now uses a Velcro style attachment, similar to the 10.0 bag.This bag has two pairs of D-rings for accessories (stuff sack shown with a rain jacket inside). One is on the top and one on the back side.
D-rings on back for accessories like a jacket or spare tire.
Black & Red color scheme
The optional Piggy-back Pocket 2.5 can be added to the back for additional capacity. It attaches in four points. When attaching it, your bag to tire clearance will be decreased.
The Equinox Horizontal Pocket will fit under your saddle, attached to the two side D-rings. This is a good place for glasses.
Outdated photo: the bag now uses a Velcro style attachment, similar to the 10.0 bag. Included is an elastic strap which you can slip over the saddle while packing, yielding a more upright position of the bag.
Close-up shot of the elastic saddle strap.
Here is an alternative way to use the straps: secure the top two together like a dry bag and then attach the side straps to themselves. This is useful when the bag is stuffed completely full.
Prototype 9.0 during a 1000K brevet in Grand Teton Natl Park during test run in 2017 (final bag is slimmer).
Prototype in use during a long brevet near Yellowstone Natl Park (2017).
Richard trying out the bag during a 1000K brevet in 2017, near Yellowstone Natl Park.
Per the request of a customer, a reference photo: 9.0 bag & a 1/2-gal milk carton.
Outdated photo: this bag now uses a Velcro seatpost style attachment, just like the 10.0 bag.
Outdated photo: this bag now uses a Velcro seatpost style attachment, just like the 10.0 bag.
Outdated photo: this bag now uses a Velcro seatpost style attachment, just like the 10.0 bag.

eoGEAR Rolltop SeatBag™ 9.0

This product has been “mostly” replaced by the Rolltop Seatbag 10.0 (released in 2019), however we still do have some available. It has two side mesh pockets that some find useful. 

Unlike the 10.0, this model is NOT suitable for cyclists using a smaller bicycle frame...i.e. 56cm or smaller. 


This saddlebag is part of the eoGEAR SeatBag family — a system for the self-sufficient cyclist or randonneur. It was introduced in July of 2017. It features an easy-to-use roll-top “dry bag style” opening with one large compartment and additional outside pockets. The version 3090, is unlike the eoGEAR RandoBags, it does not require a separate saddle bracket or adapter — the necessary hardware is already attached. The 3092 version, on the other hand fits on the saddle or handlebars. Either way, it requires an adapter.

  • The bag is very compressible — once you have removed a lot of the contents, i.e. clothing (i.e. night riding), the bag squishes down, so the remaining contents don't rattle around, similar to an internal-frame backpack.
  • Three pockets: two side mesh pockets and a zippered pocket on the back. 
  • There are two pair of D-rings for attaching additional gear or apparel. One pair is on top near the saddle and another pair is on the rear zippered pocket.
  • The rear of the bag accepts the Piggy-back Pocket 2.5 (for more capacity) and/or a Reflective Triangle.
  • The bag attaches with the German-made SKS Adapter around the seatpost and two Velcro straps that attach to the rails of your saddle. It attaches to either Brooks or Rivet-brand leather saddles or tech saddles without additional parts. It is designed to work only on round posts, but we have an informal adapter for aero posts...e-mail Richard for details.
  • The lower body of the bag is reinforced with a stiff HDPE framesheet. This design greatly minimizes the side-to-side sway that is often seen on other large saddle mounted bags, especially when one stands up to pedal.
  • It is constructed of a combination of 6.5 oz. 420-denier Nylon Diamond Ripstop and 420D pack cloth. Both have a water-repellent coating on the inside of the fabric — we don’t use cheap polyester fabrics like some imported bags.
  • The pocket uses heavy-duty #8 water-repellent zipper.
  • Gray-colored webbing used for the compression strap for easy of use in dim light.
  • Reflective tape on the sides and rear of the bag.
  • We received one report that with a smallish road frame (52cm) with the maximum saddle set-back, that one’s legs may brush against the bag of the bag. 
  • Also visit the owners personal blog page for the design background of why he created this series of bags

Add-on Pockets

1) The back (label-side) of the bag has four attachment points for attaching the eoGEAR Piggy-back Pocket 2.5. This will enable you to carry another 2.5 liters of gear. (But it will hang out a little more, so you will have less clearance above your rear tire.)

2) Alternatively, an Equinox Horizontal Pack Pocket can be attached on the front side of the bag yielding about a liter of storage space: ideal for crushable items like a pair of glasses, an extra tube or a very lightweight vest. Ideally this pouch will attach to the side D-rings. 

    Rear Tire Clearance 

    You must have at least 17cm (6-3/4") from the top of your rear tire (or fender) to the bottom rails of your saddle. For more details description, visit this page. Frames smaller than 54cm may not work with this bag as the bottom of the bag may rub on the rear wheel. Choose instead, one of the RandoBags, i.e. the RandoBag 8.2 with a Highboy or Supersize bracket. When attaching the Piggy-back Pocket 2.5, clearance will be decreased.

    Differences Between the RandoBag 8.2 and this, the SeatBag 9.0 Bag 

    • The 9.0 has more pockets for better organization than the 8.2. The zippered pocket on the 9.0 is larger than the 8.2 pocket.
    • The 9.0 has two mesh pockets instead of one.
    • The 9.0 has a more trim bottom, providing more clearance above the tire than the 8.2.
    • And lastly, the biggest difference is that the attachment hardware is sewn in on the 9.0, so there is no need to have a separate bracket (but consequently the 9.0 will not attach to the Supersize L Bracket, for those with REALLY small frames, i.e. 50cm).

    Rants & Raves

    “Thanks for a terrific product! Finally a bag system that holds as much stuff as a rack, but without the rack!  I really like that the bag doesn't rub against my thighs, even though I mount the bag on the front of the board.” (D.W. from Davis, Calif., Sept. 2011 regarding the RandoBag 6.8). 

    Installation Tip

    When attaching the bag to your bag, first attach the clamp/strap to the seatpost. Be sure that it has LOT of tension on it. The majority of the bag weight should be on the seatpost clamp and NOT on the Velcro seat rail straps. The clamp has a rubber lining, so it won’t damage carbon-fiber posts. I have used it on three of my road bikes, all of which have carbon-fiber post for several years now...no problem.​ See this page for more details or our How To page to download the PDF instruction sheet which ships with new products.


    Weight: 475 g (16.8 oz.)
    Stock color is black with gray accent panels.

    Total volume: 9.0 liters or 550 cu in. The volume of main compartment is 8.5 liters w/ 2 folds on top; the zippered pocket adds .5 liter. The volume of the bag is based on folding or rolling the bag twice on top—you can only roll it once and/or clip the top two buckles together like a dry bag (and then connect the side straps to themselves in front of the bag, in which case you can gain about another liter or so of volume.

    Bag dimensions (approx. HxWxD): 40* x 17 x 12.75cm (15.3* x 6.7 x 5.0"). *With the top rolled over twice.

    The fabric of this bag is waterproof, but due to stitching the bags, water may seep through the seams. We recommend using an internal dry bag for keeping critical items dry.

    eoGEAR SKU # 3090-GIA, SeatBag 9.0 (includes integrated attachment adapters) 
    eoGEAR SKU # 3092-G00, RandoBag 9.0 (has the Velcro Dual Tab System on the back; no saddle adapters, must be used with an RandoBag modular seat bracket or a handlebar adapter like the 2354 or 2323).

    Designed and Crafted in the USA

    made in usa