1120 Frameset

You live for freedom, value self-reliance, and want to build up an awesome bikepacking and off-road touring bike that'll take you places other bikes simply can't.

Aluminum frame with adjustable rear horizontal sliding dropouts, mounts for our proprietary rack system, and internal derailleur and dropper post routing. Plus, an FSA headset. Made for Boost148 29er wheels and 12mm thru axles.

This is the frame to get if you want to build a bike for big adventures. Every part of 1120 is made for better bikepacking and built to take on the burliest trails you can find.

This boundary-expanding bike is ready to be spec’d for however you love to adventure
Our 1120 rack and durable harness system (sold separately) make it easy to secure 8L bags on the rear rack and additional gear up front for the best packing balance
So many mounting features let you set up your ideal expedition ride as you see fit
It's also an awesome mountain bike — if you're looking to tear up some singletrack, just pull off the racks
The horizontal sliding dropout lets you dial in your geometry and easily convert to singlespeed if your derailleur busts out in the wild

greydark-0 swatch

$1,319.99

black-0 swatch

Bontrager Verse Comp Bike Saddle

$104.99 $134.99

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Bontrager Adventure Top Tube Bag

$59.99

black-0 swatch

Bontrager Kovee Elite 35 MTB Handlebar

$99.99

black-0 swatch

Trek 1120 Rear Bikepacking Harness System

$109.99

black-0 swatch
yellowvisibility-1 swatch

Bontrager Elite Seat Pack

$29.99 - $64.99

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Bontrager Kovee Elite 35 MTB Handlebar

$99.99

black-0 swatch

Bontrager Line Pro 35 0 Degree Blendr Stem

$144.99

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A 15mm front thru axle makes steering more precise for more control, and the quick-release feature makes wheel removal easy.

Not ready for an internally routed dropper post now, but want to keep your options open? Select frames are equipped with the proper entry and exit points to accommodate internal routing for a Stealth seat post.

Horizontal sliding dropout with redundant securing mechanisms allows for no-slip singlespeed or geared options and provides the ability to dial in the geometry to match each rider’s style.

Learn more

Wider dropouts (110mm front, 148mm rear) give you the stiffness of a 27.5" wheel with all the benefits of a 29" wheel, and Boost148 in the rear lets you run wider tires and a larger chainring without affecting q-factor and pedaling efficiency.

How do you fit a 29" tyre without elongating the wheelbase? Elevate the drive-side chainstay up and out of the way.

Stache is optimized for a single chainring. No front derailleur means a tighter wheelbase for a lively ride.

29+ is a wider 3" tyre that grips relentlessly while floating over terrain. Yet it delivers all the 29er benefits that you know and love, like greater momentum and improved rollover.

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*Please note - spec applies to all sizes unless listed separately

Frame	Alpha Platinum Aluminum, tapered head tube, internal derailleur & dropper post routing, proprietary rack mounts, horizontal sliding dropouts, Boost148, 12mm thru axle
Max compatible fork travel	120mm (510mm axle-to-crown)

Max tire size	29x3.00"

Max chainring size	1x: 32T

Headset	FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Rotor size	Max brake rotor sizes: 180mm front & rear

Weight	M - 2.10 kg / 4.63 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.

How tall are you?

To measure your height, stand straight up, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inseam?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inseam measurement. Your inseam is very important to your final bike size so please measure carefully.

size-table
Size	Rider Height	Inseam
S	155 - 165 cm 5'1" - 5'5"	74 - 78 cm 29" - 31"
M	165 - 176 cm 5'5" - 5'9"	79 - 83 cm 31" - 33"
L	177 - 188 cm 5'10" - 6'2"	84 - 89 cm 33" - 35"
XL	188 - 195 cm 6'2" - 6'5"	89 - 91 cm 35" - 36"

All measurements provided in cm unless otherwise stated.

Sizing table
Frame size number	Frame size letter	Wheel size	A — Seat tube	B — Seat tube angle	C — Head tube length	D — Head angle	E — Effective top tube	F — Bottom bracket height	G — Bottom bracket drop	H — Chainstay length	I — Offset	J — Trail	K — Wheelbase	L — Standover	M — Frame reach	N — Frame stack
15.5	S	29+	39.4	73.5°	10.0	70.4°	56.0	31.4	7.6	44.0	5.1	8.5	108.2	77.8	39.6	63.4
17.5	M	29+	41.9	73.5°	10.0	70.4°	58.6	31.5	7.5	44.0	5.1	8.5	110.8	79.1	42.2	63.4
19.5	L	29+	47.0	73.5°	11.0	70.3°	61.9	31.5	7.5	44.0	5.1	8.5	114.2	79.2	45.1	64.2
21.5	XL	29+	52.1	73.5°	12.0	70.3°	64.3	31.5	7.5	44.0	5.1	8.6	116.6	79.2	47.1	65.1

1120 Frameset

Model 35920

References

Diagram - Frames with Horizontal Sliding Dropouts
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Assembly Manual - 1120 Rack
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1120 Frameset