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Yeti SB140/LR - User Manual

Yeti SB140/LR
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YETI SB140/LR
OWNER’S MANUAL

Table of Contents

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Summary

SB140;LR Frame Features Overview

SB140 LR Geometry Specifications

SB140 Geometry Specifications

Yeti SB140 Maintenance and Torque Guide

Maintenance Schedule Overview

Guidelines for maintaining bicycle performance and preventing problems, with service intervals.

Key Torque Specifications

Essential torque values for frame assembly and component adjustments for safe operation.

SB140 Frame Assembly Instructions

Bearing Press Assembly Guide

Link Bearing Press Procedure

Detailed steps for pressing bearings into the bike's link components using specific tools.

Extender Bearing Press Procedure

Instructions for pressing bearings into the extender components of the bike's suspension.

Switch Infinity V2 Bearing Assembly

Switch Infinity V2 Bearing Removal

Steps for safely removing bearings from the Switch Infinity V2 mechanism.

Switch Infinity V2 Bearing Installation

Procedure for installing new bearings into the Switch Infinity V2 mechanism.

Switch Infinity V1 Bearing Assembly

Switch Infinity V1 Bearing Removal

Steps for safely removing bearings from the Switch Infinity V1 mechanism.

Switch Infinity V1 Bearing Installation

Procedure for installing new bearings into the Switch Infinity V1 mechanism.

SB140 Seat Post Installation

Switch Infinity Service and Maintenance

Dropper Post Insertion Guide

SB140 Frequently Asked Questions (Part 1)

Switch Infinity Technology Functionality

Details how the patented translating pivot of Switch Infinity technology works.

Switch Infinity System Maintenance Requirements

Recommended Travel Fork for SB140

SB140 Frequently Asked Questions (Part 2)

SB140 Rear Shock Type and Recommendations

Recommended Sag Percentage for SB140

SB140 Lifetime Warranty Information

Details the lifetime manufacturer's warranty covering manufacturing defects for original purchasers.

Yeti SB140 Lifetime Warranty Details

Warranty Disclaimer and Claims

Summary

SB140;LR Frame Features Overview

SB140 LR Geometry Specifications

SB140 Geometry Specifications

Yeti SB140 Maintenance and Torque Guide

Maintenance Schedule Overview

Guidelines for maintaining bicycle performance and preventing problems, with service intervals.

Key Torque Specifications

Essential torque values for frame assembly and component adjustments for safe operation.

SB140 Frame Assembly Instructions

Bearing Press Assembly Guide

Link Bearing Press Procedure

Detailed steps for pressing bearings into the bike's link components using specific tools.

Extender Bearing Press Procedure

Instructions for pressing bearings into the extender components of the bike's suspension.

Switch Infinity V2 Bearing Assembly

Switch Infinity V2 Bearing Removal

Steps for safely removing bearings from the Switch Infinity V2 mechanism.

Switch Infinity V2 Bearing Installation

Procedure for installing new bearings into the Switch Infinity V2 mechanism.

Switch Infinity V1 Bearing Assembly

Switch Infinity V1 Bearing Removal

Steps for safely removing bearings from the Switch Infinity V1 mechanism.

Switch Infinity V1 Bearing Installation

Procedure for installing new bearings into the Switch Infinity V1 mechanism.

SB140 Seat Post Installation

Switch Infinity Service and Maintenance

Dropper Post Insertion Guide

SB140 Frequently Asked Questions (Part 1)

Switch Infinity Technology Functionality

Details how the patented translating pivot of Switch Infinity technology works.

Switch Infinity System Maintenance Requirements

Recommended Travel Fork for SB140

SB140 Frequently Asked Questions (Part 2)

SB140 Rear Shock Type and Recommendations

Recommended Sag Percentage for SB140

SB140 Lifetime Warranty Information

Details the lifetime manufacturer's warranty covering manufacturing defects for original purchasers.

Yeti SB140 Lifetime Warranty Details

Warranty Disclaimer and Claims

Overview

  1. Technical Specifications
  2. Geometry (SB140 LR with 160mm Fork)
  3. Geometry (SB140 with 150mm Fork)
  4. Usage Features
  5. Maintenance Features
  6. Warranty
  7. Important Warnings

The Yeti SB140/LR is a high-performance mountain bike frame designed for off-road use, offering a blend of stiffness, durability, and compliance for an aggressive yet smooth ride. It features a 140mm rear travel with Yeti's patented Switch Infinity suspension technology, which provides efficient pedaling performance while maintaining smooth and supportive suspension on rough terrain.

Technical Specifications:

  • Travel: 140mm
  • Wheel Size: 29"
  • Frame Sizes: Small (SM), Medium (MD), Large (LG), X-Large (XL), XX-Large (XXL)
  • Rear Shock: 210mm x 55mm
  • Bottom Bracket: BSA 73mm
  • Rear Wheel: 148mm x 12mm (BOOST)
  • Seatpost Diameter: 31.6mm
  • Chainline: 55mm
  • Headset: Integrated 41mm/52mm Tapered
  • Rear Brake Post Mount: 180mm
  • Shock Hardware: Front: M8 x 36mm, Rear: Custom Insert
  • Min/Max Chainring: 28T Min / 34T Max
  • Min/Max Rear Rotor: 180mm Min / 203mm Max
  • Axle Spec: 172mm M12x1

Geometry (SB140 LR with 160mm Fork):

Feature SM MD LG XL XXL
Seat Tube Length 365 400 440 470 485
Eff. Top Tube Length 573 603 624 652 671
Head Tube Angle 65.0 65.0 65.0 65.0 65.0
Eff. Seat Tube Angle 77.0 77.0 77.0 77.0 77.0
Actual Seat Tube Angle 71.8 72.2 72.4 72.8 73.3
Chainstay Length 436 438 440 442 444
Wheelbase 1188 1221 1246 1277 1304
Estimated BB Height 342 342 342 342 342
Standover 726 733 737 739 744
Headtube Length 92 95 100 112 134
Fork (Axle to Crown) 575 575 575 575 575
Fork (Offset) 44 44 44 44 44
Stack 617 620 625 635 655
Reach 430 460 480 505 520
Front Center 752 783 806 835 860
Vertical Fork Travel 145 145 145 145 145

Geometry (SB140 with 150mm Fork):

Feature SM MD LG XL XXL
Seat Tube Length 365 400 440 470 485
Eff. Top Tube Length 571 602 623 650 670
Head Tube Angle 65.4 65.4 65.4 65.4 65.4
Eff. Seat Tube Angle 77.5 77.5 77.5 77.5 77.5
Actual Seat Tube Angle 72.2 72.6 72.8 73.2 73.7
Chainstay Length 436 438 440 442 444
Wheelbase 1184 1217 1242 1273 1300
Estimated BB Height 339 339 339 339 339
Standover 722 729 733 735 740
Headtube Length 92 95 100 112 134
Fork (Axle to Crown) 565 565 565 565 565
Fork (Offset) 44 44 44 44 44
Stack 614 617 621 631 651
Reach 435 465 485 510 525
Front Center 748 779 802 831 856
Vertical Fork Travel 136 136 136 136 136

Usage Features:

  • High Modulus Carbon Fiber: The frame is constructed from high modulus carbon fiber, available in Turq Series (highest quality) and Carbon Series (slightly heavier but still high-performance) for optimal stiffness and efficiency.
  • Floating Collet Axle System: This system on pivots ensures a perfectly aligned connection between the front and rear triangles, enhancing bearing life and smooth movement.
  • Integrated ISCG-05 Mounts: Features 3-bolt ISCG-05 chain guide mounts for added drivetrain security on challenging trails.
  • Rattle-Free Cable Port Assembly: Designed with clamping cable ports to secure cables and hoses, reducing movement and noise for a silent ride. Configurable ports accommodate both cabled and wireless components.
  • Internally Molded Cable Tubes: Provides hassle-free routing of cables through the downtube, ensuring easy installation and a clean aesthetic.
  • Integrated Tapered Head Tube: A 41mm/52mm tapered head tube design increases stiffness and lowers overall ride height without compromising performance.
  • Custom Down Tube Protector and Ribbed Chain Guards: Custom-designed seatstay, chainstay, and down tube guards protect the frame and reduce chain slap noise, allowing riders to focus on the trail.
  • Integrated Axle and Universal Derailleur Hanger System (UDH): Dedicated 12 x 148 boost dropouts with SRAM's UDH provide strength, stiffness, and easy hanger and wheel installation.
  • Custom Tuned Rear Shock: Yeti develops custom suspension tunes to optimize suspension performance and perfectly complement the SB140's kinematics.
  • Dropper Post Compatibility: Designed to accommodate stealth dropper posts with specific insertion guidelines to prevent tire-to-saddle or tire-to-battery interference during suspension compression.
  • Water Bottle Fitment: Sizes L-XXL fit a standard-sized water bottle with a piggy-back shock, while SM and MD frames fit a standard 21oz water bottle with a piggy-back shock (side-entry cage recommended for easiest access).
  • Tire Clearance: Can accept up to a 2.6" tire, though actual tire sizes may vary by manufacturer.
  • Fork Compatibility: Designed for 150mm or 160mm travel forks, tested up to 180mm (max axle-to-crown 595mm). Running shorter forks is also possible but will steepen angles and lower the BB.
  • Coil Shock Compatibility: The frame is designed to be compatible with both air and coil-sprung shocks.

Maintenance Features:

  • Maintenance Schedule: A detailed schedule outlines routine checks (before each ride, monthly, 3 months, annually) including chain lubrication, tire pressure, cleaning, brake function, cable end caps, rim inspection, bolt tightening, headset adjustment, brake pad and tire wear, spoke tension, and chain wear.
  • Torque Specifications: Comprehensive torque specifications are provided for all frame assembly bolts and components, emphasizing the use of a torque wrench for proper assembly.
  • Switch Infinity System Maintenance: The fully sealed Switch Infinity mechanism features external grease ports for lubricating bushings and seals. A lubrication interval of 40 hours of riding is recommended, with instructions to clean excess dust and dirt.
  • Bearing Press Assembly: Detailed instructions for pressing bearings into the link and extender, ensuring proper seating.
  • Switch Infinity Bearing Assembly: Step-by-step guides for both V1 and V2 Switch Infinity bearing removal and installation.
  • Frame Assembly Instructions: Detailed, step-by-step instructions for assembling the frame components, including shock installation, cable port clamps, and Switch Infinity link.
  • Prep Key: Indicates where to use grease, Loctite, or nylon patch during assembly.
  • Rebuild Kits: Available kits for link and shock extender bearings, Switch Infinity V2 bearings, cable ports, nylon downtube protector, SB140 protector kit, and shock extender kit.
  • Hardware Rebuild Kit: A comprehensive kit containing various bolts, nuts, washers, and spacers for frame hardware replacement.
  • AXS Conversion Kit: Includes components for converting to a wireless drivetrain setup.
  • FOX Linear Bearing V2 Kit: Specific kit for FOX linear bearings.
  • Frame Protector Sheet: Available in gloss or matte finishes.
  • Shuttle Guard: An accessory for frame protection during transport.
  • SRAM Universal Derailleur Hanger: Replacement hanger.

Warranty:

  • Lifetime Warranty: All 2019 and newer frames, including the Switch Infinity, are covered for life against manufacturing defects for the original purchaser.
  • Paint and Finish: Covered for 1 year.
  • Conditions: Requires online registration at yeticycles.com and processing through an authorized Yeti Cycles dealer.
  • Exclusions: Does not cover damage due to ordinary wear and tear, neglect, or intentional destruction.
  • Crash Replacement: Offers a reasonable replacement price for crash or non-warranty situations.
  • Older Frames: Model year 2018 and older frames are covered under previous warranty terms (5-year or 2-year based on purchase time).

Important Warnings:

  • Always review and understand all warnings, instructions, and content in the manual and accompanying manuals.
  • Bicycle maintenance requires special knowledge and tools; Yeti recommends all service and repairs be performed by an authorized Yeti Dealer.
  • Failure to follow prep instructions during assembly could lead to serious frame issues.
  • Using non-genuine Yeti parts or modifying frame parts will void the warranty and transfer all liability to the customer.
  • Using an angleset on the SB140 is not recommended and will void the warranty.
  • Always perform a final check for dropper post insertion to ensure it is above the minimum insertion line and that there is no tire interference with the saddle or AXS battery at full bottom out.

Yeti SB140/LR Specifications

General IconGeneral
BrandYeti
ModelSB140/LR
CategoryBicycle Accessories
LanguageEnglish

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