Tech Tips by Randy Pozzi

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Tech Tips By Randy Pozzi
CH250 - Helix Interchange
Readers Rides
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Parts Diagrams

#1 Breather Separator
#2 Drive Belt & Pulley Weight Rollers
#3 Startability & Driveability Problems
#4 CH250 Performance Upgrades
#5 CH250 Valve Adjustment
#6 Decals
#7 Pilot Screw Adjustment & Fix
#8 CH250 Driven Pulley/Clutch Repair
#9 Final Drive Oil Change
#10 Storing Your CH250 in Winter
#11 Hondaline Kenwood AM/FM Stereo
#12 Front Bumper Protector & Lower Cover Repair
#13 How To Buy A Good 1985-88 CH250
#14 Tires For The Honda CH 250
#15 CH250 Keihin Carb Float Valve Repair
#16 The Honda CH250: An Overview
#17 Honda CH250 Color Crossovers
#18 Honda CH250 Clock
#19 Keihin CV Carburetor Tuning
#20 Honda CH250 Oil Change
#21 Backfiring On Deceleration
#22 Parts Bin--What To Hoard For Your CH250
#23 Honda CH250 Maintenance
#24 So Your Honda Scooter Won't Start?
#25 How To Buy A Battery For Your CH250
#26 Honda CB350 Shocks To The Honda CH250
#27 1985-88 Honda CH250 Speedo Maintenance
#28 Honda CH-250 Antifreeze/Coolant Service
#29 CH250 Charging System Checks
#30  Final Reduction and Wheel Bearing Maintenance

#14 Tires For The Honda CH 250
Hello Group,

Without question the most asked about issue posted in this Group is "What's the best tire for my CH250?" and "Which tire gives you the best mileage for the least amount of money?" And the answers usually are the same--that depends. That depends on your driving habits, terrain traveled and your budget. 

Honda research and development determined that exact fitment of certain tires on the CH250 provided superb handling stability, weight-carrying requirements and optimum performance characteristics. Tires for the Honda CH250 are rated J60--J for the speed rating of 62 mph and 60 for the 551 lb weight-carrying rating. The original equipment manufacturer (OEM) tires on the Honda CH250 are the 4.00x10 tubeless Dunlop K627 rear and the Dunlop F11 front. 

How do I find out when the tire was manufacturered? Every tire has a date code stamped on the sidewall, which gives the date that the tire was manufactured. They look something like this: DOT PDHH MLOR 3403. The date code can be on either side of the tire, so you may have to crawl underneath the rig and look on the inward facing side. The date code always starts with the letters DOT and ends with a 3 or 4 digit number. That last number is the date code, which tells you when the tire was manufactured. The first two numbers indicate the week (out of 52) and the last one or two digits indicate the year. For instance, 3403 means the 34th week of 2003, or the last week in August 2003. Starting with the year 2000, the date codes have two digits for the year, prior to that, only one. A date code of 079 would indicate the seventh week of 1999, or the third week of February 1999. 

Tires deteriorate with age, even when sitting on a shelf, so always ask to see the date code when you purchase new tires and insist on tires manufactured within the last few months. The tire dealer may give you a funny look because most consumers don't know about date codes. 

Dunlop, which has manufactured racing tires for over 100 years, rates these tires at either 3-ply or 4-ply nylon tread with 2-ply sidewall. Although the manufacturer does not rate motorcycle tires for expected mileage, realistic figures are from 4-6K miles and vary with use. 

Bridgestone, also with a long racing heritage, provides excellent scooter tires in their
Molas (ML) series. The ML8 comes in a 2-ply or 4-ply block pattern delivering superb handling performance for front or rear use. The ML16 is for rear use and has uni-directional water channeling characteristics for superb wet weather handling and is designed to work with the ML17 front which has similar design. The ML35 is a all-position performance tire designed for the 1989-90 CH250. While none of these tires has particularly aggressive tread pattern, all have similar excellent water dispersion and wet pavement gripping characteristics of the OEM Dunlop's. Prices vary from $45-65 retail and price per tire discounts are available. 

The equivalent metric tire to the 4.00x10 is the 110/90x10. Tires like the Pirelli SL26, IRC MB510, and tires manufactured from Kenda and Cheng Shin offer valued pricing at reduced tread life and marginal wet pavement traction. As with anything, you get what you pay for. Years of experience has taught me that the extra bit of safety that good quality tires provide, is definitely worth the extra cost over cheaper tires.

Randy Pozzi (Rev. 06/2004)

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