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Home Road Bike Parts Yamaha Parts Yamaha TZR250 UK Model 2MA -1KT Yamaha TZR250 Engine Parts Top End Yamaha TZR 250 Boyesen Reed Valves
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Boyesen developed and patented the dual-stage reed. The dual-stage design incorporates a highly responsive top reed placed on top of a stiffer, ported reed for superior performance throughout the entire powerband. The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. Dual-stage reeds work in unison to perform efficiently throughout the entire powerband. The difference in stiffness between the top reed and the bottom reed allows the reeds to respond quickly and accurately to changes in engine pressure as you accelerate or back off the throttle. This translates into a dramatic increase in engine efficiency and performance across the entire powerband, from start-up to wide open throttle.
Order Processing And Time Scale UK Only
We aim to process your order within 48 hours of us receiving it (Monday to Friday) process means pick and pack your order and get is posted out. If there are any items that are not in stock we will notify you as soon as we can via the Email address you have given us. Please allow around 5 day's delivery time from the date of dispatch. Unless otherwise agreed in advance we don't and cannot guarantee delivery times whatsoever. Special order Items cannot be returned for a refund. Any Damages need to be reported within 24hrs of receiving your parts.
Post And Packing Costs For Main Land UK
Order Value + VAT
Free Shipping Does Not Apply To Services Ie Crank Shaft Rebuilds, Cylinder Re-Boring Etc
WE DO NOT OFFER A SATURDAY DELIVERY SERVICE, THE REASON FOR THIS IS BOTH ROYAL MAIL AND DPD DO NOT GUARANTEE A SATURDAY DELIVERY
Small Items Like Jets, Gaskets are Sent With Royal Mail 1st Class Post , All other Items Are Sent With DPD Or Parcel Force
For more about our shipping to Europe and the rest of the world please go to Shipping & Returns