What is SIXFINITY Technology and how does it work?
As you might expect, there isn't a short answer to this question. Head over to our Sixfinity webpage to learn all about the nitty gritty that makes this technology special - https://yeticycles.com/en-us/technology/sixfinity.
Does the SIXFINITY system require maintenance?
The Sixfinity system utilizes a series of links that rotate on fully sealed bearings. The pivot interfaces utilize floating collet and bearing assemblies designed for durability and minimizing friction. We recommend checking the entire bike monthly for loose bolts, including the Sixfinity system. Bearing service intervals can vary depending on climate, trail conditions and riding frequency. For more information about this system and general bicycle maintenance, please consult the MT user manual or contact your nearest authorized Yeti Cycles dealer.
Can I replace or modify any Yeti frame parts on my MT?
All replacement frame parts for your MT can be found through your local dealer or on our webstore. Only genuine Yeti parts should be used when replacing any parts on your frame. We know there are a lot of aftermarket products out there that seem legit but we do not have the ability to qualify and ensure all of these products are safe to use on our frames. If it is found that any frame part has been modified or replaced all warranties will be voided and all liability will be assumed by the customer.
Can I change or upgrade the spec components on my MT?
There are many options in aftermarket parts to upgrade or personalize your bike. Some parts are standardized, especially from the big brands like Fox, Shimano, SRAM etc. You should always confirm with a professional mechanic that your parts are the correct standard and correctly and securely mount to your bike without any interference or play. Pay special attention to all the bike's standards and check the fit before use.
Can I use an angleset on the MT?
The MT was designed with a ZS44 upper and ZS56 lower headset standard. There are numerous aftermarket angle adjust headsets available in this standard. We designed the frame to be compatible with a maximum of 1 degree of adjustment, meaning +1 or -1 degree of adjustment. Any angle adjustment outside these specifications is not approved and will result in a voided warranty. See “What travel fork is the MT designed to use” for more information.
What travel fork is the MT designed to use?
The MT is designed to run a 160mm travel fork. We tested this frame to 20mm over the spec fork. So if you’re feeling the need to beef up the fork you can run up to a 180mm fork no problem. Bottom line - max axle to crown measurement of 598mm. Increasing your fork travel will slacken the head angle and seat tube angle and raise the bottom bracket. Running a shorter fork is fine too if that suits you. Shortening the fork will steepen the head angle and seat tube angle and lower the bottom bracket For more geometry information, check out the geometry section.
How big of a tire can I fit on the MT?
The short answer is the MT can accept up to a 2.6" tire. There is great tire clearance on the MT but tire sizes vary widely by manufacturers, so it is hard to give a number that works for all brands.
Can I fit a water bottle inside the front triangle?
Yes, we designed the MT to accommodate a standard sized water bottle inside the front triangle with a piggy-back shock. We recommend using a side-entry cage for easiest access.
What cranks and bottom bracket can I use on the MT?
The MT bottom-bracket standard is BSA 73mm and only wide “q” factor cranks are compatible. It is readily compatible with Shimano, SRAM, and RaceFace cranks, but a fit check is required for other brands.
What rear wheel axle fits on my MT?
The MT is designed to work exclusively with SRAM's Universal Derailleur Hanger at 12x148mm spacing with a 172mm long axle. This axle had a thread pitch M12x1.0. Note that this axle is only compatible with frames specifically designed with the Universal Derailleur Hanger.
What type of headset does the MT use?
The MT uses a ZS44/ZS56 tapered headset.
How big of a rotor will fit on the frame?
The MT has a direct mount rear brake tab and can run a 180mm rotor without the need for a brake adaptor. With the use of a brake adaptor the frame can accept up to a 220mm rotor.
What chainline was the MT designed around?
The MT was designed around a 55mm Boost chainline.
What is the max size single-chainring that fits on the MT?
The MT will accept up to a 34t round ring.
Does the MT have ISCG mounts?
Yes. The MT has integrated ISCG ’05 mounts. It is designed to work best with low-profile modern guides; depending on the brand, some older models with larger upper guides may not fit. We always recommend performing a fit-check with a specific chainguide to confirm compatibility.
What type of shock does the MT use?
The MT uses a 185 x 55mm Trunnion shock. Depending on the shock model, it can be locked out but we recommend running it fully open for the best compliance and traction.
What type of shock hardware does the MT use?
The MT uses a standard trunnion mount on the upper hardware and M8x40mm lower hardware. The lower shock hardware is adjustable so that you can tune the leverage rate to suit you riding style or terrain you are riding. Please see the owners manual for further information.
Can I put a coil shock on my MT?
Yes, the MT is designed to be compatible with both air and coil-sprung shocks. We would suggest going to a higher rate on the rate chip as coil sprung shocks typically work the best at higher leverage rates.
What percentage sag do you recommend for the MT?
We would advise starting with 30% sag, or 16.5mm of shock stroke for optimal pedaling efficiency and terrain compliance. Be sure to set your sag at your normal riding weight, gear included. Feel free to venture slightly above or below 30% to suit your personal preference. Visit our shock set up page to help set up your suspension, https://shocksetup.yeticycles.com/calculator
What size seat post does the MT use?
The MT uses a 31.6mm seat post.
What size seat collar does the MT use?
The MT uses a 36.4mm seat collar.
What is the warranty on my MT?
The MT frame has a LIFETIME warranty against manufacturer defect.
What is the longest travel dropper post I can run on the MT?
This is mostly defined by your inseam. You can run any travel as long as you are above the minimum insert mark and you are not so low your tire rubs on your saddle or your dropper bottoms out in the frame. Your local Yeti dealer can help you sort this out or see the owner's manual for more guidance.
Can I convert this bike into a "mullet" bike and put a 27.5" wheel on rear of the MT?
It is possible, but we would not suggest it as it would lower your BB too much and slacken your head tube angle and seat tube angle. But hey, if those changes suit your ride style then go for it.
Does the MT accommodate a tracking device?
Yes, we designed a holder that integrates into the lower downtube access port to accept Apple AirTag or Tile Sticker (2020, 2022). Reference the MT owners manual for more information regarding the installation.
Why would I want to adjust the leverage rate of the MT?
Your personal preference, riding style, and terrain can influence which leverage rate setting you choose on your MT. The best thing to do is experiment and see what works best for you. The 'stock' setting is 15% and should be a great place to start. For more information about leverage rates visit our shock setup page, https://shocksetup.yeticycles.com/support
Can I run a dual crown fork on the MT?
No. The MT was not designed to accommodate a dual crown fork.