Racer X - Motocross & Supercross NewsRacer X
  • All Series
  • Subscribe Now
  • Supercross
    • News
    • Schedule
    • TV Schedule
    • Results
    • Standings
    • Teams
    • Riders
    • Tracks
    • The Vault
  • Motocross
    • News
    • Schedule
    • TV Schedule
    • Results
    • Standings
    • Riders
    • Teams
    • Tracks
    • The Vault
  • SuperMotocross
    • News
    • Schedule
    • TV Schedule
    • Results
    • Standings
    • Teams
    • Riders
    • Tracks
  • MXGP
    • News
    • Schedule
    • TV Schedule
    • Results
    • Standings
    • Teams
    • Riders
    • Tracks
  • GNCC
    • News
    • Schedule
    • TV Schedule
    • Results
    • Standings
    • Riders
    • Tracks
  • Loretta Lynn’s
    • News
    • The Vault
  • More Series
    • MXoN
    • WSX
    • WMX
    • Australian SX
    • Australian MX
    • Canadian MX
    • EnduroCross
    • Straight Rhythm
  • Features
    • 10 Things
    • 30 Greatest AMA Motocrossers
    • 3 on 3
    • 250 Words
    • 450 Words
    • Arenacross Report
    • Between the Motos
    • Breakdown
    • Deals of the Week
    • GNCC Report
    • Great Battles
    • Hard Enduro Report
    • How to Watch
    • Injury Report
    • Insight
    • In the Mag, On the Web
    • Lockdown Diaries
    • Longform
    • MXGP Race Reports
    • My Favorite Loretta Lynn's Moto
    • Next
    • Next Level
    • Observations
    • On This Day in Moto
    • Open Mic
    • Podcasts
    • Photo Galleries
    • Privateer Profile
    • Race Day Feed
    • Racerhead
    • Racer X Awards
    • Racer X Films
    • Racer X Redux
    • Rapid Reaxtion
    • RX Exhaust
    • Saturday Night Live
    • Staging Area
    • The Conversation
    • The List
    • The Lives They Lived
    • The Moment
    • Things We Learned at the Ranch
    • UnPhiltered
    • Videos
    • Wake-Up Call
    • Where Are They Now
    • 50 Years of Pro Motocross
  • Shop
    • New Releases
    • Men's
    • Women's
    • Youth
    • Accessories
    • Sales Rack
    • Stickers
  • About Us
  • The Mag
    • Digital Magazine Bookstand
    • Customer Care
    • Current Issue
    • Newsletter
    • Store Locator
    • Subscribe
    • Sell Racer X
  • One Click Sign-In

    • Facebook
    • Twitter
    OR

    Sign in with your username and password

    • Sign In
  • Motocross
  • News
  • Schedule
  • TV Schedule
  • Results
  • Standings
  • Riders
  • Teams
  • Tracks
  • The Vault
  • Subscribe Now
  • Table of Contents
Results Archive
Supercross
Arlington
News
450SX Main Event Results
  1. Hunter Lawrence
  2. Eli Tomac
  3. Cooper Webb
Full Results
250SX East Main Event Results
  1. Pierce Brown
  2. Jo Shimoda
  3. Daxton Bennick
Full Results
GNCC
Wild Boar
News
Overall Race Results
  1. Ben Kelley
  2. Grant Davis
  3. Cody J Barnes
Full Results
XC2 Pro Race Results
  1. Jhak Walker
  2. Brody Johnson
  3. Jack Edmondson
Full Results
Supercross
Daytona
News
450SX Main Event Results
  1. Eli Tomac
  2. Hunter Lawrence
  3. Ken Roczen
Full Results
250SX East Main Event Results
  1. Seth Hammaker
  2. Cole Davies
  3. Pierce Brown
Full Results
Amateur
RCSX
News
Results
Live Now
GNCC
Talladega
News
Upcoming
Supercross
Indianapolis
Sat Mar 7
News
450SX Entry List
  1. Cooper Webb
  2. Eli Tomac
  3. Aaron Plessinger
Full Entry List
250SX East Entry List
  1. Seth Hammaker
  2. Coty Schock
  3. Nate Thrasher
Full Entry List
Upcoming
MXGP of
Argentina
Sun Mar 8
News
Full Schedule

Racer X Tested: 2013 Yamaha YZF250 Big Bore

November 28, 2013, 4:00am
Matt Francis Matt Francis
  • Home
  • Multimedia
  • Video
  • Racer X Tested
  • Racer X Tested: 2013 Yamaha YZF250 Big Bore
Cylinder Works 3mm Big bore Cylinder Kit 269cc the kit includes a Forged Vertex Piston kit, Cometic Top-End gasket kit and new complete plated Cylinder.  www.rockymountainatvmc.com 800-336-5437

Hot Cams Stage Two camshafts www.rockymountainatvmc.com 800-336-5437

FMF Racing RCT 4.1 Muffler and Ti Megabomb header www.rockymountainatvmc.com 800-336-5437

MotoTassinari Air4orce air boot  $298.00 www.rockymountainatvmc.com 800-336-5437

CV4 Silicone Coolant hoses and High pressure radiator cap  www.rockymountainatvmc.com 800-336-5437

Renthal 48T rear sprocketR1 Works Chain, Twin-Wall’s  www.rockymountainatvmc.com 800-336-5437

VP Racing Fuels U 4.4 – mixed half and half with 91 pump www.vpracingfuels.com 210-635-7744

Uni Filter Two-Stage Air Filter www.rockymountainatvmc.com 800-336-5437

Dunlop Tire MX51 front 80/100-21 MX 31 rear 110/80-19 www.rockymountainatvmc.com 800-336-5437

Tusk Oversized Typhoon front rotor kit  www.tuskoffroad.com 800-336-5437

DeCal Works Semi-Custom Graphics kit with #’s www.decalmx.com 815-784-4000

MB1 Suspension Suspension re-valve  www.mb1suspension.com 951-371-5045

OEM Yamaha parts www.rockymountainatvmc.com 800-336-5437

YZ125 (two-stroke) air filter cage (no backfire screen)

08 fork guards (larger and now printed Yamaha logo)

Previous Next
Privateer Profile:  Robert Lind Wed Nov 27 Privateer Profile: Robert Lind Rev Up: Thankful Thu Nov 28 Rev Up: Thankful
Read Now
April 2026 Issue Now Available
Get Racer X on your iPhone
Check out all the exclusive content this month on any device!
Read Now
The April 2026 Digital Issue Availalbe Now

Motocross & Supercross News - Racer X

122 Vista Del Rio Drive, Morgantown, WV 26508 | 304-284-0084 | Contact Us
©1999 - 2026 Filter Publications LLC. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Preferences | Do Not Sell or Share My Personal Information
designed at: Website Design at Impulse Studios
New stories have been posted