Trek Speed Concept: the Accessories
images by Nick Salazar
Mar 27, 2014  hits 197,964

First up: the Universal Monoextension. This bad boy will accept ANY standard 22.2mm extension without complaint, allowing easy reach and roll adjustment without moving any of the other components in the front end. I'm VERY MUCH in favor of this piece of hardware over any of the other Monoextension units. This is an aftermarket piece, but if you own a 2014 Speed Concept it's really in your best interest to spend the extra cash to buy it.
First up: the Universal Monoextension. This bad boy will accept ANY standard 22.2mm extension without complaint, allowing easy reach and roll adjustment without moving any of the other components in the front end. I'm VERY MUCH in favor of this piece of hardware over any of the other Monoextension units. This is an aftermarket piece, but if you own a 2014 Speed Concept it's really in your best interest to spend the extra cash to buy it.
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When I reviewed the New Trek Speed Concept, despite all the improvements and changes, I still had a few little nitpicks to offer. Perhaps the two biggest of these were the change in saddle clamp mechanism, and the fact that there was no compatibility with standard 22.2mm extensions. Well, leave it to Trek to continue development of their flagship bike, because both of those complaints have been completely solved. If you're bothered by either the seatpost or the extension mechanism, Trek has you covered. In this gallery, you can see detailed images of both of those solutions, as well as the unique BTA bottle cage, designed specifically for their Monoextension hardware.



Tags » accessories,  bontrager,  speedconcept,  trek

Universal Monoextension 

  • First up: the Universal Monoextension. This bad boy will accept ANY standard 22.2mm extension without complaint, allowing easy reach and roll adjustment without moving any of the other components in the front end. I'm VERY MUCH in favor of this piece of hardware over any of the other Monoextension units. This is an aftermarket piece, but if you own a 2014 Speed Concept it's really in your best interest to spend the extra cash to buy it.
  • Like all the other Monoextension units, the Universal version has multiple reach adjustment points, so you can position the extensions AND the pads wherever you like. Despite that adjustmet metric, you can still adjust the reach and roll independently, via the extension clamps at the end of the piece.
  • Another shot of the Universal Monoextension for the 2014 Trek Speed Concept.
  • The Universal Monoextension viewed from the front. There is basically NO added frontal area from using your own extensions. Trek did a fantastic job with this piece.
  • Another shot of the Universal Monoextension viewed from the front. There is basically NO added frontal area from using your own extensions. Trek did a fantastic job with this piece.
  • The Trek Speed Concept Universal Monoextension, no extensions installed.
  • The Trek Speed Concept Universal Monoextension, no extensions installed.
  • The Trek Speed Concept Universal Monoextension, no extensions installed.
  • The Trek Speed Concept Universal Monoextension, no extensions installed.
  • The Trek Speed Concept Universal Monoextension, with Felt F-Bend Extensions.
  • The Trek Speed Concept Universal Monoextension, with Felt F-Bend Extensions.
  • The Trek Speed Concept Universal Monoextension, with Felt F-Bend Extensions. The cables go directly into the Monoextension, meaning there's no need to route them inside the standard extension itself. THAT means that if you ever want to swap out extensions, you don't have to reroute ANYTHING. Just unscrew the shifter plug, swap extensions, and replace!
  • The Trek Speed Concept Universal Monoextension, with Felt F-Bend Extensions.
  • The Trek Speed Concept Universal Monoextension, with Felt F-Bend Extensions.
  • The Trek Speed Concept Universal Monoextension, with Felt F-Bend Extensions.

BTA Mount + Bottle 

  • Trek's Monoextensions all have a pair of M5 bosses in front of and behind their adjustment slot, but these bosses are spaced WIDER than traditional bottle bosses. So Bontrager created a special adapter and bottle that will work with these bosses, allowing you to still use a BTA bottle. The adapter also allows you to use standard bottles in addition to the special one Bontrager makes.
  • Trek's Monoextensions all have a pair of M5 bosses in front of and behind their adjustment slot, but these bosses are spaced WIDER than traditional bottle bosses. So Bontrager created a special adapter and bottle that will work with these bosses, allowing you to still use a BTA bottle. The adapter also allows you to use standard bottles in addition to the special one Bontrager makes.
  • Trek's Monoextensions all have a pair of M5 bosses in front of and behind their adjustment slot, but these bosses are spaced WIDER than traditional bottle bosses. So Bontrager created a special adapter and bottle that will work with these bosses, allowing you to still use a BTA bottle. The adapter also allows you to use standard bottles in addition to the special one Bontrager makes.
  • Here is Trek's special bottle cage mounted on the Universal Monoextension. It looks a bit like a scorpion this way.
  • This is the BTA bottle mount. It has several spots for bottles to be screwed down.
  • This is the BTA bottle mount. It has several spots for bottles to be screwed down.
  • This is the BTA bottle mount. It has several spots for bottles to be screwed down.
  • This is the BTA bottle mount. It has several spots for bottles to be screwed down.
  • The special Monoextension BTA mount with an Xlab Gorilla XT cage.
  • The special Monoextension BTA mount with an Xlab Gorilla XT cage and Profile Design HC Bottle. This is my preferred BTA setup on the 2014 Speed Concept.
  • The special Monoextension BTA mount with an Xlab Gorilla XT cage and Profile Design HC Bottle. This is my preferred BTA setup on the 2014 Speed Concept.
  • The special Monoextension BTA mount with an Xlab Gorilla XT cage and Profile Design HC Bottle. This is my preferred BTA setup on the 2014 Speed Concept.
  • The special Monoextension BTA mount with an Xlab Gorilla XT cage and Profile Design HC Bottle. This is my preferred BTA setup on the 2014 Speed Concept.
  • The special Monoextension BTA mount with an Xlab Gorilla XT cage and Profile Design HC Bottle. This is my preferred BTA setup on the 2014 Speed Concept.

Side-bolt Seatpost 

  • The New Speed Concept 7-series uses the saddle clamp mechanism that Bontrager has used for many years; it uses a single side-address bolt that controls both saddle tilt AND setback, and it works perfectly. That 7-series post is compatible with the 9-series bike. It also shares a cross-section with the old TTX post, meaning if you have (or buy) an old TTX post, that will work with the new 7-series and 9-series Speed Concept frames. What's old is new again!
  • Here's a closeup of the side-on view of the side-address clamp. In my view, there was no reason to depart from this fantastic design.
  • And here's the frontal view of that clamp. Perhaps the new design saves a smidgen of frontal area, but that's not going to make a real drag difference once a rider is on the bike, and his or her legs/hips are shielding the clamp from the wind.
  • The side-address seatpost, plus the Universal Monoextension and Felt F-Bend Extensions.

Computer Mount 

  • Trek has also made a computer mount that can be bolted onto any Monoextension piece, if you're not using that boss as a bottle mount. It proved a 26.0mm clamping surface for standard computer mounts. This might add a little frontal area, since you have to add a bit of extra hardware to get the computer on, but your arms are in the mix, making the total aerodynamic penalty small.
  • Trek has also made a computer mount that can be bolted onto any Monoextension piece, if you're not using that boss as a bottle mount. It proved a 26.0mm clamping surface for standard computer mounts. This might add a little frontal area, since you have to add a bit of extra hardware to get the computer on, but your arms are in the mix, making the total aerodynamic penalty small.
  • Trek has also made a computer mount that can be bolted onto any Monoextension piece, if you're not using that boss as a bottle mount. It proved a 26.0mm clamping surface for standard computer mounts. This might add a little frontal area, since you have to add a bit of extra hardware to get the computer on, but your arms are in the mix, making the total aerodynamic penalty small.

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