YT Jeffsy 29 CORE 1 AL 2026 | All Mountain Mountain Bike

Q: 📌 When will my order be shipped?

Your orders will be delivered to cargo within 1-2 business days . This period may vary depending on the density during campaign periods.

Q: 📌 How can I track my order?

When your order is shipped, the tracking number is shared via e-mail and SMS. You can track your order on the cargo company's website with this number.

Q: 📌 How can I return and exchange a product?

You can return the products within 14 days , unused and in their original packaging. You can review our return policy for detailed return procedures.

Q: 📌 Do your products have a warranty?

Yes! All products on sale are under manufacturer or distributor warranty . You can check the product descriptions for warranty period and conditions.

YT Jeffsy 29 CORE 1 AL All Mountain Mountain Bike 2026

Vendor:YT Industries

100200151495568M

YT Jeffsy 29 CORE 1 AL All Mountain Mountain Bike 2026

TL192,500.00

Ön Sipariş

Şimdi Ön Siparişe Açıldı

Tahmini teslim tarihi Haziran ayı içerisinde planlanmaktadır.

Ön sipariş veren müşterilerimize Oakley sırt çantası hediye gönderilecektir.

Çantayı İncele

Colour: YELLOW

YELLOWYELLOW

Dimension: M

M

Product variants

Out of stock

6 installments with no interest on all cards.

Pickup currently unavailable at Merkez

Share:

Share

These Go Well Too

ALL MOUNTAIN

Whatever your mountain bike (MTB) goals are, the JEFFSY CORE 1 is the answer you're looking for. This progressive package is a versatile all-rounder designed for the next generation of trail riders ready to push their limits while exploring their potential as a team.

Even with our entry-level CORE 1 model, we uphold the highest standards: hand-crafted aluminum frame, top-tier tires, and high-quality components. The biggest innovation in this edition is the Marzocchi suspension package, which offers effortless performance even on the toughest impacts. Powerful down to the finest detail, this bike is a true "giant killer" and the ultimate proof that you don't need to spend a fortune to have a good time.

Marzocchi Bomber

At the heart of the YT Jeffsy CORE 1, the suspension system is designed to elevate off-road riding to the next level. The front Marzocchi Bomber Z1 with 150 mm of travel combines legendary durability with modern RAIL 2.0 technology, offering smooth control even on the roughest terrain.

At the rear, the Marzocchi Bomber Air, custom-tuned and optimized for the Jeffsy's agile nature, ensures the wheel maintains traction on all types of obstacles. With the Sweep Adjust feature, you can instantly adjust the stiffness for climbs and unleash the system's full potential on descents. Whether you're pushing your limits on technical trails or enjoying comfort on long routes, this suspension package promises a "giant-slaying" performance every time.

Specifications

Staff

Frame Size: S,M,L,XL,XXL

Color: Drip Yellow, Black Magic

Bottle Cage Set: Thirstmaster 6000 Gift

Suspension

Front Fork: Marzocchi Bomber Z1 / 150mm / Rail 2.0 / 15x110mm / 44mm Offset

Rear Suspension: Marzocchi Bomber Air 145mm / 210x55mm Sweep Adjust / Custom Tune / 0.6 Spacer

Rims

Wheelset: Sunringle SR329 Trail COMP 30mm / Front 15x110 - Rear 12x148 / 6-Bolt Rotor / HyperGlide FreeHub

Tires: Front Maxxis Minion DHF 29x2.40 / Rear Maxxis Minion DHR II 29x2.50 / EXO+ Casing / 3C MaxxTerra Compound / Tubeless Ready

Gear Group

Crankset: Shimano FC-M512 170mm 32T

Cassette: Shimano Deore CS-M6100 10-51T 12S Hyperglide+

Rear Derailleur: Shimano Deore RD-M6100 Shadow+ 12S

Shift Lever: Shimano Deore SL-M6100-R 12S Rapidfire Plus

Bottom Bracket: Shimano BB-MT501 BSA/24mm Hollowtech II

Components

Headset: Cane Creek Series 10 / ZS44 ZS56 High Cap / 2 Spacer 5mm

Stem: YT STEM 35 / 50mm / +-0°

Handlebar: YT Handlebar 35 / 780mm Width / Rise 30mm / 8° Backsweep / 6° Upsweep

Grips: ODI Elite Motion V2.1 Lock-on

Brakes: Sram DB8 Mineral

Rotor: Sram Centerline 200mm Front / 200mm Rear

Seatpost: YT Original Seatpost 31.6mm / 125mm(S) - 150mm(M) - 170mm(L) - 200mm(XL-XXL)

Saddle: YT SADDLE 144mm - Steel Rails

Weight

16.50 kg - 36.37 lbs

What's in the Box

Thirstmaster Canteen Set 620ML
YT Industries Jeffsy Core 1
YT x Crankbrothers Special Repair Kit

Size & Geometry

JEFFSY CORE 1 Geometri Tablosu

JEFFSY CORE 1, modern trail geometrisi ile çevik sürüş karakteri ve yüksek iniş güvenini bir araya getirir. Aşağıdaki tablo 29” platform için ölçüleri göstermektedir.

Platform: 29” Bedenler: S / M / L / XL / XXL Birim: mm / °

Geometry

JEFFSY CORE 1 / 29” / Low

Ölçü	S	M	L	XL	XXL
A — Top Tube	578	593	609	627	645
B — Reach	435	455	475	495	515
C — Stack	613	620	627	634	642
D — Seat Tube	385	410	435	460	485
E — Chainstay	437	437	437	442	442
F — Head Tube Angle	65°	65°	65°	65°	65°
G — Seat Tube Angle (Eff.)	76.9°	77.5°	77.9°	78.3°	78.6°
H — BB Drop	33	33	33	33	33
I — Wheelbase	1191	1214	1238	1266	1289
J — Head Tube	100	108	116	124	132
K — BB Height	343	343	343	343	343
L — Standover	730	728	732	738	742

Beden Rehberi

Önerilen boy aralıkları

S153 – 166 cm

M162 – 176 cm

L172 – 185 cm

XL181 – 194 cm

XXL190 – 203 cm

Ölçü Açıklamaları

Geometri referansları

ATop TubeÜst boru uzunluğu

BReachSürüş pozisyonunu belirleyen en kritik ölçülerden biri

CStackGidon yüksekliği hissini etkiler

EChainstayArka tarafın dengesi ve manevra karakteri

HBB DropOrta göbek düşümü / ağırlık merkezi hissi

IWheelbaseToplam dingil mesafesi / stabilite

Bu tablo JEFFSY CORE 1 için yayınlanan 29” geometri verilerine göre hazırlanmıştır. Geometri tablosunda yazım hatası kaynaklı bozukluklar olabilir. Tam doğru bilgi için YT Industries web sitesinden net bilgiye ulaşabilirsiniz.

High-End Aluminum Frame

Senior Staff Guards

Thirstmaster Water Bottle Set Gift

Frequently Asked Questions

📌 When will my order be shipped?

Your orders will be delivered to cargo within 1-2 business days . This period may vary depending on the density during campaign periods.

📌 Which Cargo Company Do You Work With?

Shipments are made within Türkiye with Domestic Cargo. International shipments are sent with any of the companies DHL - FEDEX - TNT.

📌 How can I track my order?

When your order is shipped, the tracking number is shared via e-mail and SMS. You can track your order on the cargo company's website with this number.

📌 How can I return and exchange a product?

You can return the products within 14 days , unused and in their original packaging. You can review our return policy for detailed return procedures.

📌 When will I be refunded for the product I returned?

Once your return is approved, your payment will be refunded within 3-7 business days , depending on the payment method you used.

📌 Do your products have a warranty?

Yes! All products on sale are under manufacturer or distributor warranty . You can check the product descriptions for warranty period and conditions.

YT Jeffsy 29 CORE 1 AL All Mountain Mountain Bike 2026

Şimdi Ön Siparişe Açıldı

Marzocchi Bomber

Specifications

JEFFSY CORE 1 Geometri Tablosu

Geometry

Beden Rehberi

Ölçü Açıklamaları

High-End Aluminum Frame

Senior Staff Guards

Thirstmaster Water Bottle Set Gift

High-End Aluminum Frame

Senior Staff Guards

Thirstmaster Water Bottle Set Gift

Frequently Asked Questions

Shop by Brand