09 889 6857 | [email protected]
Cart 0


Thumpstar - MX85 | 2T | 85cc

$3,999.00 [Crate Price]
or 6 weekly interest-free payments of $666.50 Laybuy
What's this?

Bring back the 2-strokes!
We are releasing a small batch of our 4th gen 85cc to YOU, limited numbers available.
For the past few years we have been conducting research and development of one of our most exciting projects yet! The Thumpstar MX line of bikes. This bike has been tested and raced throughout Australia over the last couple of years and it has been doing great, finishing with strong results, often podium placings in both MX and Endurance racing. Looking forward into 2020 will be releasing our first race ready line of 85cc two strokes which will stack up and compete, without the worry of a heavy price tag when your jr racers are just starting out.


85cc Race Engine w/ Power Valve 
Our design and development team have put together the ultimate 2-stroke 85cc engine package which delivers sufficient power and performance to compete with the other race ready bikes in the Jr 85cc class. At the heart of the bike sits a 84cc, 1-cylinder, 2-stroke, water-cooled engine with reed intake.  

Keihin PWK 28 Carb
Reliability comes with using trusted brands of parts. The now includes a Keihin PWK carburetor well known to the motocross world. Keihin PWK carburetors are the dominant carbs on the factory motocross machines. Because of their great performance they come stock on a lot of the leading brand bikes. With these features you can take advantage of Keihin's superior performance to propel you to the race win.

6 Speed Gearbox w/ Hydraulic Clutch
A 6 speed gearbox paired with the hydraulic performance multi plate wet clutch provides clean and easy gear selection, manageable acceleration, and makes race starts and overall rideability a breeze.

Fully adjustable front and rear suspension  
Our top of the line VS1 suspension provides a fully adjustable and responsive package which gives the rider full feel and control of the bike through ruts, over bumps, up takeoffs, and down landings.

Oversized Brakes for 250/450cc
More important than engine power and acceleration, is stopping power. The MX85 is well equipped with Dual-Pot HSK brakes in the front, and Single-Pot HSK brakes in the rear. HSK provides an extremely responsive package that will allow any rider precise control into every corner. 
7075 Rims w/ Stainless Steel Spokes
The rims are made of  7075 series alloy and are used by almost all top riders. The AK7 rim keeps on being the best, strongest and most reliable rim we produce. Stainless steel spokes prevent stretching and snapping which is a common issue with other types of steel spokes.

Pipe Bomb Exhaust
What is a two stroke without that scream when on the pipe that we all know and love? Our tuned expansion chamber and muffler package provides that crisp sound, with tuned performance.




1-cylinder, 2-stroke engine




84.9 mm


48.95 mm










Wet, multi-disc clutch, Formula hydraulics






Seat Height





Central-tube frame

front suspension

Adjustable Upside Down VS1 Forks

rear suspension

VS1 PDI Mono Shock

suspension travel (front)


suspension travel(rear)


Brake system

Hydraulic, dual-pot calipers (front)

Hydraulic, Single pot 

Tank capacity




These are motocross race bikes, motocross can be a dangerous sport, and Thumpstar holds no responsibility for those who may be injured partaking in the sport. The race bikes come with a base tune and we reccomend that your mechanic may need to rejet it to get the best performance out of the bike. We ship these bikes globally which may result in jetting and fuelling to vary in the envrionments the bikes are shipped to. As a performance motorcycle Thumpstar holds no responsibility for damages that may occur to the bike and or engine as a result of incorrect or lack thereof tuning, and or user error when setting the bike up.

why thumpstar

Frequently Asked Question



Payment Details;

Credit cards & Debit cards: We accept Paypal, Visa, Master Card payments through our website. Our checkout pages are encrypted using SSL, Credit Cards are verified in real time using Paypal and checked again via Riskified to ensure maximum security. If you would like to pay with Q Card, Prezzy Card or Diners then we can offer this via Trademe Buynow Auction, just contact us at [email protected] to arrange this.

Online Banking: Payments can be made by direct credit bank transfers. Simply Checkout, and click bank deposit option, you will then be emailed an invoice, remember to use your order number as a reference. Order over the Phone: To make an order over the phone, simply call 09 889 6857 or TXT 027 848 6779 to speak with one of our friendly customer service team. They can email you an invoice directly and will be able to help you with any questions you may have, as well as placing orders over the phone.

Bank Details:

Target Imports

ANZ Bank

06 0909 0333210 25

Ref: Order number

Parts Shipping

Parts are sent via PBT Couriers who send NZ wide within 1-2 days including a tracking number, we have used PBT for many years and have found them very reliable. YES we combine orders.

  • No Pickup Dunedin
  • $10 South Island Small Part
  • $15 North Island Small Part
  • $40 Engine New Zealand Wide
  • $7 additional for rural delivery (RD) or can collect from PBT Depot

If you do not pay additional for Rural Delivery your part will be sent to closest PBT Depot. To check your post code is classed as Rural(RD) - CLICK HERE

Motorcycle Shipping

Thumpstar motorcycles are all sent in a steel crate and come 95% assembled. Please click here for assembly video instructions. We recommend having your local Thumpstar dealer assemble your new motorcycle.

Minicross, Pit Bike and Kids Motorcycle,

ATV, Quad and Full sized 250cc Motorcycles,

  • Free Pickup Dunedin
  • PBT Depot Collect ($90 South Island $130 North Island)
  • To Your Door ($130 South Island, $170 North Island)

Facetime/Skype Viewing

Want to view a Thumpstar from the comfort of your own home?

We now offering a new service to our customers, where customers can book a Facetime viewing (if have a Apple Iphone)

Our friendly salesman will show you around the Thumpstar and let you check out any details you wish, you can even listen to it run.

To book a viewing please TXT 027 848 6779 with what model you are interested in and we will be in touch with a time that suits, usually within 12 hours.


  • 09 889 6857
  • [email protected]
  • Target Imports
  • 270 Kaikorai Valley Road
  • Dunedin, 9011
  • New Zealand

Help Ordering

If you are unsure on ordering a part, we recommend watching our Youtube video under Info/Video tab or visiting our workshop section, if you still need help then please contact us,

Phone: 09 889 6857

Email: [email protected]


Target Imports has been distributing Pit Bike / Mini Bike for the LONGEST in New Zealand and on Trademe (2004) this is our new web account which has been setup with one of the most advanced online parts ordering systems available, so you can be sure we always have stock. For Trademe feedback reference please visit account fmxjason which has a %100 record.

Our company is based in New Zealand and Australia and are the official distributors of the very popular Genuine Thumpstar. We also sell Pitster Pro and Reaper and can supply parts for other NZ Pit Bike / Mini Moto brands including Honda crf50, crf110, Yamaha TTR110, Kawasaki KLX110, KX 65, Suzuki DRZ 110, RM65, Daytona, Forza FMX and Braaap.

We also have lots of Dirt Bike, Motocross Riding Gear and Parts at great prices.

For more information on our company, just search GOOGLE.

We ship international, customers from overseas can benefit from our low exchange rate.

More from this collection