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

Q: 📌 When will my order be shipped?

Your orders are shipped within 1-2 business days . This period may vary during promotional times due to volume.

Q: 📌 How can I track my order?

When your order is shipped, the tracking number will be shared via email and SMS. You can track your order on the courier company's website with this number.

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

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

Q: 📌 Do your products have a warranty?

Yes! All products for sale are covered by manufacturer or distributor warranty . You can check product descriptions for warranty duration and terms.

179.900,00 TRY 192.500,00 TRY

Colour: YELLOW

YELLOW - Sold Out

Dimension: M

M - Sold Out

Product variants

Out of stock

Free shipping on orders over 500 TL
6 interest-free installments
Easy returns within 14 days
Secure payment

Installments Without Interest on All Cards 6

Pickup currently unavailable at Merkez

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Delivery and product preparation

Ask our store about preparation time and any assembly required before ordering. Pickup availability is checked separately for the selected option.

Read shipping policy Ask about delivery and assembly

ALL MOUNTAIN

Whatever your mountain biking (MTB) goals are, JEFFSY CORE 1 is the answer you’re looking for. This progressive package is a versatile all-rounder machine designed for the new generation of trail riders ready to challenge their skills while exploring their potential as a team.

Even in our entry-level CORE 1 model, we maintain the highest standards: handcrafted aluminum frame, top-tier tires, and high-quality components. The biggest innovation of this edition is the Marzocchi suspension package that delivers effortless performance even on the harshest impacts. This bike, powerful down to the smallest detail, is a true "giant killer" and the best proof that you don't need to spend a fortune to have a great time.

Marzocchi Bomber

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

At the rear, the Marzocchi Bomber Air, with its Custom Tune design specially optimized for Jeffsy's agile structure, ensures the wheel maintains grip on any terrain. Thanks to the Sweep Adjust feature, you can make a single-move firmness adjustment during climbs and unleash the system's full potential on descents. Whether pushing your limits on technical trails or enjoying comfort on long rides, this suspension package promises "monster truck" performance at every moment.

Technical Specifications

Frame

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

Color: Drip Yellow, Black Magic

Bottle 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

Wheels

Wheel Set: 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

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

Handlebar Stem: YT STEM 35 / 50mm / +-0°

Handlebar: YT Handlebar 35 / 780mm Width / 30mm Rise / 8° Back Sweep / 6° Up Sweep

Handlebar Grip: ODI Elite Motion V2.1 Threaded

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 Inside the Box

Thirstmaster Bottle 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.

Premium Aluminum Frame

Premium Frame Guards

Thirstmaster Bottle Set Gift

Frequently Asked Questions

📌 When will my order be shipped?

Your orders are shipped within 1-2 business days. This period may vary during promotional times due to volume.

📌 Which Shipping Company Do You Work With?

Domestic shipping is done via Yurtiçi Cargo in Turkey. International shipments are sent with DHL, FEDEX, or TNT.

📌 How can I track my order?

When your order is shipped, the tracking number will be shared via email and SMS. You can track your order on the courier company's website with this number.

📌 How can I return or exchange a product?

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

📌 When will I receive a refund for my returned product?

Once your return is approved, the payment will be refunded within 3-7 business days according to your payment method.

📌 Do your products have a warranty?

Yes! All products for sale are covered by manufacturer or distributor warranty. You can check product descriptions for warranty duration and terms.

YT Jeffsy 29 CORE 1 AL All Mountain Mountain Bike 2026

Marzocchi Bomber

Technical Specifications

JEFFSY CORE 1 Geometri Tablosu

Geometry

Beden Rehberi

Ölçü Açıklamaları

Premium Aluminum Frame

Premium Frame Guards

Thirstmaster Bottle Set Gift

Premium Aluminum Frame

Premium Frame Guards

Thirstmaster Bottle Set Gift

Frequently Asked Questions

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