Transition Bikes Product Support for TR11 Alloy 2026

TR11 Alloy
YEARS PRODUCED: 2026

GENERAL SPECS
FRAME MATERIAL:	Alloy
WHEEL SIZE:	29" Front / 27.5" Rear
SIZES:	SM, MD, LG, XL
COMPONENT COMPATABILITY
FORK OFFSET:	48mm
FORK AXLE-TO-CROWN:	608mm
HEADSET (TOP):	ZS56
HEADSET (BOTTOM):	ZS56
BB:	83mm Threaded
ISCG:	ISCG 05
CHAINRING MAXIMUM:	38T
CHAINLINE:	56.5mm
REAR BRAKE MOUNT:	200mm Post Mount (Max Rotor Size 223mm)
DERAILLEUR HANGER:	SRAM UDH
REAR AXLE:	Transition 12mm x 148mm for SRAM UDH
SEAT CLAMP:	37mm
SEATPOST DIAMETER:	31.6mm
SEATPOST INSERTION DEPTH:	240mm
NOTES:	Optional SALSA Dropouts Sold Separately
SUSPENSION SPECS
FRONT TRAVEL:	200mm
REAR TRAVEL:	211mm
SHOCK SIZE:	225mm x 75mm
SHOCK HARDWARE:	Trunnion Mount Top / 30mm x 8mm Bottom

WARRANTY POLICY

At Transition Bikes, we take pride in the quality of our products. Our frames are manufactured to withstand the rigors and abuse modern mountain bike trails can dish out. That said, anything can break given just the right amount of time, wear, or misfortune. Everyone here at Transition Bikes is committed to keeping you riding and we realize every warranty and or crash replacement situation is unique. You have our guarantee that we will do our best to make sure we keep you riding while limiting any downtime.

The TR11 Alloy, released in 2026, is covered for life against manufacturing defects. This policy applies to original owners only. Transition Bikes will repair or replace any original purchaser's individual frame parts or complete frame at our discretion. Due to unavoidable variations in paint batches, production runs, and natural aging (e.g., UV fade), slight differences in color or finish may occur between a replacement part and the original. While we aim for consistency, perfect color matching cannot be guaranteed. These variances are not considered defects and are not covered under warranty.

If you did not purchase the bike directly from us, you must register your frame on our site with your serial number and provide proof of purchase to qualify for a warranty. In the event of an issue with your frame, Transition Bikes will determine whether it qualifies as a ‘Warranty Issue’ or is covered under our ‘Crash Replacement Policy’ (see below for details).

In the event that you have to send back all or part of your frame under warranty, you are responsible for the shipping costs to get it to us, and we will pay the return shipping.

*Our warranty policy does not cover:
Any labor costs associated to the warranty claim.
Modifications from stock configuration.
Normal wear-and-tear damage.
Paint damage caused by the removal of protective tapes or adhesives.
Paint fade and/or damage caused by environmental factors (wind, water, sun, etc.).

CRASH REPLACEMENT

In addition to our warranty, all Transition Bikes frames are covered for life under our “Crash Replacement Policy” to the original or second hand owner. If for any reason you should find yourself with a damaged frame, you may send us the broken frame section, and we will replace it for the best possible price we can, assuming we have the replacement part available. If we do not have the piece available, we will attempt to work out a crash replacement price on a replacement frame set. The customer is responsible for all shipping costs to get the frame to and from Transition Bikes.

WE GET IT, PEOPLE WHO RIDE OUR BIKES RIDE HARD

Above is our official stance, since to some degree these things need to be spelled out. But our entire philosophy is based around being a rider-owned company, and we take that seriously. We're well aware that not every circumstance can be accounted for, and not every case falls neatly into one of the above categories. We look at every warranty and crash replacement case with a fresh lens and treat every situation in the manner in which we would expect it to be handled. Our goal is to leave no rider who supports us without support in return.

WARRANTY/CRASH REPLACEMENT CLAIM FORM

To submit a Warranty/Crash Replacement Claim within the United States or Canada, you must have an account with us. To sign in to your existing account or create a new account, follow this link. Once you are signed in, click on Warranty Claims to submit a claim. Our International Distributors handle warranty cases outside the United States and Canada. Please contact your region's distributor to get a claim started. If you have any other questions regarding our warranty or crash replacement policies, please email us at warranty@transitionbikes.com or call us by phone, at (360) 230-8596.

Can I remove or substitute any parts when I buy a frame or complete bike?

We are not able to remove, substitute or modify any parts included with a frame or complete bike. All parts specified will be included with your purchase.

Can I run the TR11 with dual 27.5 wheels?

Yes, with dual 27.5 wheels your head angle will be a little bit steeper and your bottom bracket will be a little bit lower. In order to minimize the changes, we would recommend using a 29 fork. If you are converting a complete bike, all you would need is a different front wheel and tire.

Can I try a bike before I buy?

We offer three ways to demo a bike. If you find yourself in Bellingham, you can follow this link to schedule a demo through the Outpost. If you live somewhere else, you can follow this link to see what shops currently have demo bikes available. And finally, you can view our events page, located here to see which upcoming demo events we'll be participating in.

Do I need to use both fork bumpers and frame bumpers?

Yes, we highly recommend using both frame and fork bumpers on your TR11 alloy bike. Without one or both of the bumpers, the crown of the fork can make contact with the downtube of the frame causing damage. Before taking the bike out for a ride, make sure that at the extreme ends of your turning radius, that the forks lower crown is not directly contacting the frame.

Do you offer financing?

We provide easy and affordable financing through our partner, Bread, so you can pay for your purchase over time. This option is only available in the USA at this time.

How do I get warranty support / order support parts outside of North America?

You'll need to contact your nearest dealer or distributor - they can be found on our dealer map

I want to run a coil shock, do you have a spring rate recommendation?

We do not have a spring rate chart or recommendation for this model. Please reach out to the shock manufacturer or use the spring rate calculator at TF Tuned which may be found here tftuned.com.

What do the indicator marks on the C.H.I.P.S. tell me?

What is the maximum rear tire size?

We list a guideline tire size for each frame, but the real answer is: it depends. Tire brand, tread pattern, rim width, conditions, and how aggressively you ride all play a role. Wider rims can make tires measure larger, and there’s variability between sizes and manufacturers (not all 29” x 2.4” tires are created equal).

If you ride in mud, you'll need extra clearance to avoid packing up. If you push the bike hard, you could flex the rear wheel enough to cause tire rub on the rear triangle—even if you think you’ve got plenty of clearance.

So, what's the takeaway? Please use common sense. If your wheel is properly dished, trued, and tensioned and your tire is rubbing hard enough to damage the frame, you’re probably running too big of a tire.