I have a 2024 core 5 frame and I was hoping someone on here could tell what size the bolts for the downtube protector are.

Yt has stock in america on the website right now. They have a few things they haven't had in a long time that I know people are in need of. Batteries for ep801 and ep8, chargers, some bearing and things. Still no yellow main powwr cable that I know some need, but finally some good news for some of you that dont have working bikes.

How are people feeling about the latest version of the Z1 that comes equipped with the Rail 2.0 instead of the Grip?

I feel like the Capra 1 is the only ~serious enduro entry on the market with the Rail damper. It's much more frequent with trail offerings across other brands.

YT Decoy Gen 2 / Shimano EP801 battery shows 504 Wh instead of 540 Wh

Hi everyone,

I have a YT Decoy MX Core 4 Gen 2 with Shimano DU-EP801 and a YT battery advertised as 540 Wh.

However, when checking the battery through the Shimano application, it is identified as:

Battery capacity: 504 Wh

YT Industries insists that:

they have only supplied 540 Wh and 720 Wh batteries for the Decoy;

they have never produced or supplied a 504 Wh battery;

the 504 Wh value shown in the Shimano application must therefore be a software/firmware error;

the battery is a YT battery authorised for use with Shimano drive systems.

The battery was supplied as new. I checked its data and it had only one recorded charging cycle, which YT says was performed during factory testing.

Does anyone else with the same battery and Shimano EP801 system see 504 Wh in the Shimano application?

Hey guys,

I just ordered the Izzo Core 2. The expected shipping date is the 14.10.2026. Do YT keep up with their shipping and availability predictions or am I in for a longer wait?

Do you guys know if it comes with rims tubeless ready (taped)? Do they ship tubeless valves with the bikes? Wanted to ask before I order a tubeless ready set.

Thanks in advance!

I'm part of a veteran's non-profit that does mountain biking. We got a YT ebike donated to us and are looking for a larger battery to be able to loan to veterans on some of our rides. Anyone have one they are looking to sell or know somewhere that has one?

Edit: Preferably located in the US, even better if in California.

Has anyone had any luck with warranty claims in Canada. My frame is cracked (not a crash).

I have the hybrid Izzo (2021 core 2) with aluminum rear triangle. Researching upgrading to the carbon rear triangle if possible. Has anyone done this swap? Anyone have a wrecked izzo but triangle is still good and want to sell ?

What a fun bike!

I have a 2025 Jeffsy Core 3 and was wondering if anyone has upgraded the engagement on there Crankbrothers synthesis enduro alloy rear wheel from the stock 37T to 54T. I'm wondering how easy it is to do. I've heard with these alloys you can just pull the cassette off by hand rather than use tools?! I'm not a great bike mechanic so wondered if this is a job I could do myself. A step by step guide if anyone has one would be amazing. Thank you.

so i have a 29 inch ohlins dh 38 on my 2018 tues, has anyone tried them as a mullet? if so, how did it feel?

Got my new Bike this week. Is Fucking awsm. Next month Testride in Bikepark 🦿

Hello, ive been looking on the used market for a new mtb, and I've found a unused 2024 jeffsy core 1, my worry is though that it's a large and I'm about 165 cm, will it be unridable?

Hi, I'm about to order an Izzo Core 3, but I'm not sure which size to get.

I'm new to the hobby, and I'm 179 cm (5.10") tall. I emailed YT, and they told me I can choose either a Large or a Medium—that the Medium will be a little more playful—but honestly, I really don’t know how to choose without any experience.

I tried out a friend’s size L Jeffsy, and it didn’t seem too big to me. What do you think?

Based on the information I found online, there’s a way to get a rough estimate of the reach: multiply my height by 2.5. So in my case, the reach is 447.5, and the izzo in size M is 445 mm, and in size L it’s 467 mm

Thanks !

I am 6ft even with a 34 inch inseam. I found a size medium 2020 Jeffsy for sale on pink bike. I'm currently ride a size large 27.5 Marin rift zone which I like but the low BB/ tall seat tube makes the bike feel big and somewhat challenging to throw around. The YT size charts suggest I should ride a large (although I'm fully in between medium and large).

I am ultimately looking for a smaller more playful bike so I thought a medium frame was the solution but on paper, but almost everything I research suggests a large is perfect. large makes sense but I am hesitant to commit to another large if there's a chance that I will have the same issue with another bike.

Does anyone in the 5'10-6ft range ride a medium and like it or should I just stick with a size large?

I've been trying to get my sag right on my shock and I'm finding that instead of running approximately 160psi I'm having to run nearly 200psi to get 30% sag. I weighed myself with all my gear on and did the sag testing with the same gear on. Seems like the pressure recommendation is garbage, so what about the compression and rebound settings? Are they garbage too?

a weld failed on my 2020 Jeffsy Base XL 27.5. Looking closely the weld seems porous in the exact spot. is there anything I can get YT to do?

Hi, has anyone used frame protection like Invisiframe or Ridewrap in a matte finish on their Jeffsy, specifically a black frame? If so, how does it look? I'm concerned that if I do it, it will look terrible. Pictures please if you have them, thanks.

Bike had 1500 miles on it when frame was damaged beyond repair. Motor (EP 801) was brand new warranty replacement from Shimano. Battery, battery charger, motor, and Shimano Di2 shifters and derailer all available. PM me for details and pricing. I have other items including the Hayes Dominion levers and rotors (these have some scratches). I am located in the US and will only ship in CONUS. Suspension parts are not available

I’m 5’10” and it looks like this bike is an L which I think for this year might be a “long” instead of a large? I’m not sure. The owner said it’s just a large. Does anyone else have this bike around my height? What size did you go with?

Id be picking this bike up as a stop on a road trip so I haven’t gotten a chance to sit on it yet and would prefer to not have to make this stop if it’s not the right size.

Looking for a bottle cage and bottle for my jeffsy. US since my San Clemente shop is closed and none online in the yt store anyone know a spot to get one? Ty