Air filter inner diameter:43.8mm. Air filter outside diameter: 55mm.
Please check for the photos and measurements. We insist using high quality carrier for our only option. An "Unpaid item case" will be opened if item(s) were not paid for 5-7 days, If customer still doesn't pay, the item will be relisted and the case will be closed. All the parts are in high quality and good condition, We guarantee the quality of our products with the principle "Being Responsible for Customers".
We will take full responsibility if you got some problem with our parts. Some of parts may from different factory, So the parts you received maybe a little different from the photos, But the efficiency is the same. For more details, please refer to the following terms for return(Rücknahmebedingungen: Weitere Angaben). The item "FCR MX 37 Flatslide Carburetor for Honda CRF 250 R CRF250R 2002-2008 Vergaser" is in sale since Monday, December 23, 2019.This item is in the category "Auto & Motorrad\ Teile\Motorradteile\Ansaug- & Kraftstoffsysteme\Vergaser & Vergaserteile". The seller is "parts-ja-all" and is located in NINGBO,ZHEJIANG. This item can be shipped to all countries in Europe, all countries in continental Asia, United States, Canada, Australia.