HONDA ATC250R THREE-WHEELER (1986):
• ATC250R 246cc Liquid-Cooled Single-Cylinder 2-Stroke (1986)
HONDA TRX250R FOURTRAX (1986-1989):
• TRX250R FourTrax 250R 246cc Liquid-Cooled Single-Cyl 2-Stroke (1986-1989)
HONDA TRX250X (1987-1988, 1991-1992):
• TRX250X 246cc Air-Cooled OHC Single-Cylinder 4-Stroke (1987-1988, 1991-1992)
HONDA TRX300EX SPORTRAX (1993-2009):
• TRX300EX Sportrax 300 282cc Air-Cooled SOHC Single-Cyl 4-Stroke (1993-2009)
• Bore: 74mm / Stroke: 65.5mm
HONDA TRX400EX SPORTRAX (1999-2009, 2012-2014):
• TRX400EX Sportrax 400 397cc Air-Cooled SOHC Single-Cyl 4-Stroke (1999-2009, 2012-2014)
• Bore: 85mm / Stroke: 70mm
HONDA TRX450R (2004-2009):
• TRX450R 449cc Liquid-Cooled SOHC Single-Cyl 4-Stroke (2004-2009)
FITMENT NOTES:
• 520 pitch rear drive sprocket — fits all Honda sport ATVs using 520 chain
• 35 teeth — 3 less than stock 38T for increased top speed
• Shared bolt pattern across all listed models
SHIPPING TIME: Orders placed and paid by 4:00 PM EST will ship the same business day (excluding weekends and holidays which will ship next business day). Tracking information will be sent via e-mail by our shipping department. Delivery times can vary by location and shipping method. Typically, free shipping to the eastern US is estimated to be delivered in 1-2 business days, where deliveries to the western US (or most remote locations) may take up to 4-6 business days.
Items purchased with FREE SHIPPING & FLAT SHIPPING RATES only apply to US 48 CONTIGUOUS STATES and does NOT include APO/FPO/MPO (these areas are subject to a shipping surcharge). International Shipping, US Non-Continental shipping - which includes Alaska, Hawaii, Puerto Rico, US Territories and APO/FPO/MPO - all have 3-10 business day delivery times. Shipments will be delivered by UPS, FEDEX, or USPS and the carrier will be selected at our discretion.
We also offer Expedited Shipping WORLDWIDE, including Saturday delivery (Saturday Delivery is an extra $15.00 and is not always available).
SHIPPING RATES: Please add your items to a cart to determine your shipping costs and rates. Please note that international orders may be subject to customs and duty fees; all international shipping costs are the responsibility of the customer.
CANCELLING ORDERS: In the event you need to cancel or change your order you may do so within 24 hours, provided your order has not been shipped, by contacting us through eBay's messaging center. Please make sure the Ship-To address you use during checkout is correct. All orders that are returned to sender or undeliverable are subject to a 20% Return Charge.

RAREELECTRICAL products, when properly installed, are warranted against defects in materials and workmanship to the original purchaser for a period of one (1) year from the date of purchase. Warranty does not cover failure due to accident, abuse, neglect or as the result of normal wear and