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Megadan · 12-01-2017, 10:35 AM

This is a list of known issues and fixes for the Hawk 250.

Rear sprocket or sprocket stud failures.
Some owners experience the rear sprocket falling off the wheel and/or shearing the studs that secure it to said wheel. This can be easily prevented - My own thread on this topic including a simple fix that resolved it for me. http://chinariders.net/showthread.php?t=19265

If you would like to upgrade the original Chinese sprocket studs to Honda OEM studs, then you will want Part Number: 90128-ke2-940
I would include a link, but quantity and availability change so much between retailers that it makes it hard to put down one source. Just google search or use ebay and find the best deals that you can.

Tubes.
The stock tubes are a common failure point for most owners. Some have failed in just a couple hundred miles, and some of us managed to get over 1000 miles, but they eventually fail. They are made of very thin, low quality, rubber. Any TR4 stemmed quality aftermarket tube is a good upgrade.

Some often simply tear or rub through like mine, but other common causes of these failures also include damage from the spokes protruding into the rim after tightening the spokes or just not being filed flat after assembly, or the rim strip is not covering the spoke nipples inside the wheel and allowing them to rub and cut into the tube. It has also been reported that the rim itself can have sharp or rough edges that can damage the tube. These are all things to look for and correct when changing tubes.

Spokes.
Owners sometimes experience issues with the spokes breaking. It is a good idea to tighten the spokes on your bike when first assembling it, and then regularly check/tighten them. This is true of any spoked wheel, and often a part of regular maintenance and safety checks. I will check mine at a minimum of once per week.

Wheel Bearings.
While the front bearings don't tend to be an issue, more than a few owners (including myself) have had an issue with the rear wheel bearings being installed poorly and causing failures or other damage. It is a good idea to check both front and rear wheel bearings during assembly. They should spin freely. If they are locked up or notchy then replace them.

Front wheel bearings: 6301-2RS
Rear wheel bearings: 6302-2RS

I strongly advise that you purchase good quality bearings. All Balls Racing sells these bearings as linked here. http://chinariders.net/showpost.php?...&postcount=900

Other options include SKF, Timken, Nachi/Quest. Specifically, look for bearings made in Japan, Germany, the UK, or the USA. Alternately, some versions of SKF and Timken can be made in India, Taiwan, or Korea. I have had good luck with Timken bearings produced in Taiwan and Korea, but not India.

Wheel Seal dimensions.

Rear
25x47x10 1 each.

28x42x7 1 each.

Front.
23x37x7 1 each.

12-01-2017, 10:35 AM	#2
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 7,964	Known issues. This is a list of known issues and fixes for the Hawk 250. Rear sprocket or sprocket stud failures. Some owners experience the rear sprocket falling off the wheel and/or shearing the studs that secure it to said wheel. This can be easily prevented - My own thread on this topic including a simple fix that resolved it for me. http://chinariders.net/showthread.php?t=19265 If you would like to upgrade the original Chinese sprocket studs to Honda OEM studs, then you will want Part Number: *90128-ke2-940* I would include a link, but quantity and availability change so much between retailers that it makes it hard to put down one source. Just google search or use ebay and find the best deals that you can. Tubes. The stock tubes are a common failure point for most owners. Some have failed in just a couple hundred miles, and some of us managed to get over 1000 miles, but they eventually fail. They are made of very thin, low quality, rubber. Any TR4 stemmed quality aftermarket tube is a good upgrade. Some often simply tear or rub through like mine, but other common causes of these failures also include damage from the spokes protruding into the rim after tightening the spokes or just not being filed flat after assembly, or the rim strip is not covering the spoke nipples inside the wheel and allowing them to rub and cut into the tube. It has also been reported that the rim itself can have sharp or rough edges that can damage the tube. These are all things to look for and correct when changing tubes. Spokes. Owners sometimes experience issues with the spokes breaking. It is a good idea to tighten the spokes on your bike when first assembling it, and then regularly check/tighten them. This is true of any spoked wheel, and often a part of regular maintenance and safety checks. I will check mine at a minimum of once per week. Wheel Bearings. While the front bearings don't tend to be an issue, more than a few owners (including myself) have had an issue with the rear wheel bearings being installed poorly and causing failures or other damage. It is a good idea to check both front and rear wheel bearings during assembly. They should spin freely. If they are locked up or notchy then replace them. Front wheel bearings: 6301-2RS Rear wheel bearings: 6302-2RS I strongly advise that you purchase good quality bearings. All Balls Racing sells these bearings as linked here. http://chinariders.net/showpost.php?...&postcount=900 Other options include SKF, Timken, Nachi/Quest. Specifically, look for bearings made in Japan, Germany, the UK, or the USA. Alternately, some versions of SKF and Timken can be made in India, Taiwan, or Korea. I have had good luck with Timken bearings produced in Taiwan and Korea, but not India. Wheel Seal dimensions. Rear 25x47x10 1 each. 28x42x7 1 each. Front. 23x37x7 1 each. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 Last edited by Megadan; 03-19-2021 at 01:44 PM.
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