1970 Kawasaki G31M 100 Centurion Project

SOLD FOR: $3,000

Seller accepted post-auction offer.

This auction has ended.


Additional photos of this 1970 Kawasaki G31M 100 Centurion available here for your perusal.

In the late 1960s and early 1970s, motorcyclists took to the dirt in droves. Off-road riding was becoming incredibly popular, though many of the offerings at the time were based on large-capacity cruisers.

For this reason, lightweight two-stroke trail bikes quickly came into vogue, chief amongst them being the Kawasaki G31M Centurion. Despite its meager 100cc displacement, the little motocrosser produced an impressive 18.5hp at 10,500rpm. Moreover, it tipped the scales at a scant 178 pounds dry, and it ran you just $560.

So, even though it was technically marketed as a beginner’s model, the value proposition was simply too enticing for riders to ignore. Between the hair-raising performance and the raspy exhaust note, it earned the affectionate moniker of the “Baby Green Streak.”

Kawasaki was so committed to the Centurion, in fact, that it gifted Steve McQueen six units for promotion while he was filming his 1971 classic Le Mans.

This example is VIN: G3103964, engine #: G31E03685. The seller has owned the bike for 14 years.

True mileage is unknown.

Maintenance history is unknown.

This G31 appears to be completely stock.

Cosmetic Blemishes: please see the album up top for all known cosmetic blemishes. Here is a selection:

Inside of the tank:

It is riding on Dunlop tires that have aged out.

Currently located at our facility in Santa Monica, California (please make an appointment for an inspection), this Kawasaki is offered on a Bill of Sale. Have any G31M 100 Centurion stories or questions about this listing? Let us know in the “Comments” tab!

Additional Information


Santa Monica, California






G31M 100 Centurion


True Mileage Unknown




Bill of Sale Only

Title State/Country


Private Party/Dealership

Private Party

Additional Charges


Total Bids Placed: 15

Auction has ended.

Auction expired without reaching reserve price.

Highest bidder was: Mike Parsons

After the auction ended, the seller accepted an offer of $3,000 including buyer fees.

Bidder Name Bidding Time Bid Auto
Mike Parsons November 22, 2022 9:59 am $1,150
TOIGTFIW November 22, 2022 9:22 am $1,001
Mike Parsons November 22, 2022 9:15 am $901
TOIGTFIW November 22, 2022 9:15 am $801 Auto
Mike Parsons November 22, 2022 9:15 am $800
TOIGTFIW November 20, 2022 12:18 pm $700
ponce4692 November 20, 2022 11:37 am $600
TOIGTFIW November 20, 2022 11:37 am $550 Auto
TOIGTFIW November 20, 2022 6:35 am $450
xrdv8 November 18, 2022 8:08 am $350
TOIGTFIW November 18, 2022 8:08 am $301 Auto
TOIGTFIW November 16, 2022 9:10 am $201
Smokeshow November 15, 2022 7:16 pm $101
wasuber November 15, 2022 7:16 pm $69 Auto
wasuber November 15, 2022 2:59 pm $1
Auction started November 15, 2022 8:13 am
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Shipping Information

Continental US:
Haul Bikes will ship anything sold through Iconic for a starting rate of $750 in the Continental US (prices may increase in rural markets), and Iconic will handle the paperwork on your behalf. You do not need to crate your bike or drain the gas/disconnect the battery if you go with Haul Bikes. We are glad to work with the shipper of your choice as well, but you will have to arrange it.

Please note:

  • spares/extras will have to be shipped separately via FedEx or similar.
  • the fee includes $15,000 of insurance with a $500 deductible. Additional insurance can be purchased at a cost of $50 per additional $5,000 of value.
  • additional details can be found here

Southern California
On a case-by-case basis, we can transport motorcycles in our van.

We are located in Santa Monica, California 90405.
Local Rates (one way):
0-50 miles: $150
50-150 miles: $300

Please contact concierge@iconicmotorbikes.com for a quote.

We recommend TFX

$1,500 for Los Angeles, CA to Canada is a ROUGH ballpark, please contact TFX for an exact quote including shipping and customs.

Europe and Asia:
We recommend Shippio

$5,000 for US to Europe/Asia is a VERY ROUGH ballpark which includes transport as well as customs fees and duties. Please contact Shippio for an exact quote.

Australia/New Zealand:
We recommend Bikes Abroad

$1,500 for US to Australia is a ROUGH ballpark, please contact Bikes Abroad for an exact quote including shipping and customs.

Sorry, CycleVIN report not available.

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