Honda CBX (80)

(updated September 99)

Rim Stock Size Original Tyre
Front 2.15 x 19 3.50V19 Dunlop Gold Seal K127
Rear 2.50 x 18 4.50V18 Dunlop Gold Seal F11

Manufacturers' Recommendations

Manufacturer Front size Rear size
Avon
(no data)
Bridgestone BT17 100/90V-19 BT17 120/90V-18
Dunlop
(no data)
Metzeler ME-33 Laser 100/90V-19 ME-55A 120/90V-18
Michelin
(no data)
Pirelli (Germany) Match MT 09 100/90V-19 Match MT 08 120/90V-18
Phantom MT 29 100/90V-19 Phantom MT 28 120/90V-18

Martyn's Opinion

General Comments

In 1980, Honda widened the rear tyre specifications for the CBX, fitting a 2.5" rim instead of the earlier 2.15".  That made it possible to fit a tyre more suited to the demands of the powerful motor, and the original 4.50-18 corresponds to a metric 120/90-18, without squeezing the profile of the 120 at all.  In fact, tyre availability is very good for this bike, with a good selection from most manufacturers.

The Safe Bet

Brand Model Size MAW
Front Metzeler ME-33 Laser 3.50-V-19 $87
Rear Metzeler ME-55A Metronic 120/90V-18 $119

The conservative (but most expensive) choice is the classic ME-33/ME-55A combination from Metzeler.  This combination has a well-deserved reputation as a solid reliable selection, good in wet and dry, with decent wear and traction.  The ME-33 does need to be warmed up before it will stick well in hard cornering, but once it's up to temperature it performs just fine.  The catch is the price -- so unless you're really determined to take the conservative option, there are other tyres that will work just as well for less money.

A Tight Budget

Brand Model Size MAW
Front Dunlop K491 Elite II Touring MM90H-19 $60
Rear Kenda K657 Sport Challenger 120/90H-18 $53

If you need to save money, there's no better value than the Kenda rear.  It lasts reasonably well, sticks adequately in wet or dry, and works well with almost any front.  I wouldn't put a Kenda front on this bike, but substituting the Dunlop 491 doesn't cost much more and will provide more confidence.

General Purpose, Sport-Touring

Brand Model Size MAW
Front Dunlop K591 Sport Touring 100/90V-19 $68
Rear Dunlop K591 Sport Touring 120/90V-18 $78

The Safe Bet or Touring Metzelers would work well here, but in the interest of price there's no reason not to switch to Dunlop's K591's.  These tyres are designed as sport-touring tyres, and will perform well on the bike.  The chatch is the relatively short life, but the price compensates for that very nicely.

Touring

Brand Model Size MAW
Front Metzeler ME-33 Laser 3.50-H-19 $86
Rear Metzeler ME-88 Marathon 120/90HB18 $98

The choice for serious touring tyres is between the Metzeler ME-33/ME-88 and the Dunlop K491.  For this bike I'd definitely go for the Metzelers, even considering the substantial price difference.  The Dunlops would probably last a little longer, but the Metzelers also have good wear characteristics.  The real difference between these is the profile -- the Dunlops are flatter, while the Metzelers are more rounded.  For a large heavy sport-tourer like the CBX, I prefer a quicker response from the tyres, and that's what the Metzelers provide -- neutral, quick, linear, confidence-inspiring traction.  The ME-88 is not a sport-touring tyre, though, and you'll need to take it easy with the throttle if you intend to run the big six up into the powerband.

Sport-Riding

Brand Model Size MAW
Front Avon Super Venom AM20 100/90V-19 $107
Rear Avon Super Venom AM18 120/90V-18 $106

For Sport-Riding there's basically two serious choices for this bike: the Dunlop K591, and the Avon Super Venoms.  Of those, I prefer the latter -- they'll stick very well, handle well, and bring out the best in the bike.

Martyn's Choice

Brand Model Size MAW
Front Dunlop K591 Sport Touring 100/90V-19 $68
Rear Dunlop K591 Sport Touring 120/90V-18 $78

For me this is a hard choice between the Pirelli Match, Dunlop K591 and the Avon Super Venom.  In the end, even though the Avons will stick better, and the Pirellis will last longer, I'd go with the much lower price of the Dunlops.


The Full List

(from MAW and manufacturer web pages)

Well-sized matched pairs

Brand Front size MAW match Rear size MAW match
Avon Roadrunner AM20 100/90H-19 $103 good Roadrunner AM21 120/90H-18 $118 good
Super Venom AM18 100/90V-19 $94 good Super Venom AM18 120/90V-18 $106 good
Super Venom AM20 100/90V-19 $107 good Super Venom AM18 120/90V-18 $106 good
Bridgestone BT17 Sports Mileage 100/90V-19 good BT17 Sports Mileage 120/90V-18 good
SE11 100/90H-19 $76 good SE11 120/90H-18 $84 good
Continental Tour TK-16 100/90H-19 $68 good Tour TK-17 120/90H-18 $80 good
Dunlop K491 Elite II Touring MM90H-19 $60 good K491 Elite II Touring 120/90HB18 $71 good
K591 Sport Touring 100/90V-19 $68 good K591 Sport Touring 120/90V-18 $78 good
IRC Durotour RS-310 100/90H-19 $47 good Durotour RS-310 120/90H-18 $57 good
Road Winner RW-010 100/90HX19 good Road Winner RW-010 120/90HX18 $73 good
Kenda K657 Sport Challenger 100/90H-19 $47 good K657 Sport Challenger 120/90H-18 $53 good
Metzeler ME-33 Laser 3.50-V-19 $87 exact ME-55A Metronic 120/90V-18 $119 good
ME-33 Laser 3.50-V-19 $87 exact ME-99A Perfect 120/90V-18 $96 good
ME-77 100/90H-19 $70 good ME-77 120/90H-18 $87 good
ME-88 Marathon 100/90H-19 $79 good ME-88 Marathon 120/90HB18 $98 good
ME-33 Laser 3.50-H-19 $86 exact ME-88 Marathon 120/90HB18 $98 good
Michelin Macadam 50 100/90V-19 $101 good Macadam 50 120/90V-18 $115 good
Pirelli Match MT09 100/90V-19 $96 good Match MT08 120/90V-18 $116 good
Strada MT69E 100/90H-19 good Strada MT68E 120/90H-18 $85 good

Listing by Manufacturer

Avon

Front size MAW match Rear size MAW match
Roadrunner AM20 100/90H-19 $103 good Roadrunner AM21 120/90H-18 $118 good
Super Venom AM18 100/90V-19 $94 good
Super Venom AM20 100/90V-19 $107 good Super Venom AM18 120/90V-18 $106 good

Bridgestone

Front size MAW match Rear size MAW match
BT17 Sports Mileage 100/90V-19 good BT17 Sports Mileage 120/90V-18 good
BT35 Sports Mileage 120/80H-18 $101 short
BT45 Sports Mileage 120/80H-18 $76 short
SE11 100/90H-19 $76 good SE11 120/90H-18 $84 good

Continental

Front size MAW match Rear size MAW match
Avenue 100/90H-19 $95 good
Blitz TKH-23 110/90H-19 $46 wide Blitz TKH-24 120/90H-18 $58 good
Milestone CM1 100/90H-19 $72 good
Tour TK-16 100/90H-19 $68 good Tour TK-17 120/90H-18 $80 good

Dunlop

Front size MAW match Rear size MAW match
Cruisemax 100/90--19 $140 good
D401 Sport Touring 100/90H-19 $63 good
F11 100/90H-19 $56 good K627 130/80--18 $88 wide
F11 100/90S-19 good
K491 Elite II Touring MM90H-19 $60 good K491 Elite II Touring 120/90HB18 $71 good
K591 Sport Touring 100/90V-19 $68 good K591 Sport Touring 120/90V-18 $78 good

Firestone

Front size MAW match Rear size MAW match
VT-01F 100/90H-19 good

IRC

Front size MAW match Rear size MAW match
Durotour RS-310 100/90H-19 $47 good Durotour RS-310 120/90H-18 $57 good
Durotour RS-410 110/90H-19 $73 wide
GS-18 100/90H-19T $56 good
Road Winner RW-010 100/90HX19 good Road Winner RW-010 120/90HX18 $73 good
Wildflare WF-920 100/90H-19 $70 good

Kenda

Front size MAW match Rear size MAW match
K657 Sport Challenger 100/90H-19 $47 good K657 Sport Challenger 120/90H-18 $53 good

Metzeler

Front size MAW match Rear size MAW match
ME-33 Laser 3.50-H-19 $86 exact ME-55A Metronic 120/90V-18 $119 good
ME-33 Laser 3.50-V-19 $87 exact
ME-33 Laser 100/90H-19 good
ME-33 Laser 100/90V-19 good
ME-77 100/90H-19 $70 good ME-77 120/90H-18 $87 good
ME-88 Marathon 100/90H-19 $79 good ME-88 Marathon 120/90HB18 $98 good
ME-880 Marathon 100/90H-19 $97 good
ME-99A Perfect 120/90H-18 good
ME-99A Perfect 120/90V-18 $96 good

Michelin

Front size MAW match Rear size MAW match
Commander 100/90H-19 $96 good
Macadam 50 100/90V-19 $101 good Macadam 50 120/90V-18 $115 good
Macadam 50 120/90H-18 $109 good
Tarmac (old) 100/90H-19 $62 good

Pirelli

Front size MAW match Rear size MAW match
Match MT09 100/90V-19 $96 good Match MT08 120/90V-18 $116 good
Phantom MT28 120/90V-18 good
Route 66 MT66F 100/90H-19 $74 good
Strada MT69E 100/90H-19 good Strada MT68E 120/90H-18 $85 good

Key:

Exact Precisely matches original spec
Excellent Precisely matches a recommended alternate
Good An exact or alternate in a different sizing system
Short Exact or excellent width, lower profile.  Consider these both ends to lower the bike
Soft Similar diameter by using a taller profile and narrower width; used on the rear only
Tall Taller profile, stock width; similar in effect to "soft", but for the front only
Wide Same profile, wider tyre.  This MAY NOT FIT your rim.  BE CAREFUL!!!