For the development and preservation of 2stroke racing technology specializing in the Honda 250R / TRX250R.
For performance engine develoment, technical issues, and parts call:
951-595-7189, M-F
 lic: 00131272


1) When people talk about two strokes, they talk about the very good power to weight, size and complexity ratio. If your objective in design needs those things, then you've found the better engine.
2) When people talk about four strokes, they talk about reliability, economy and superior emissions adherence. If your objective in design needs in those things, then you've found the better engine.
3) Making a four stroke engine bigger until you gain an edge in power over a two stroke does not make it a better engine for power, just like making a two stroke smaller to make it use less fuel doesn't make it a better engine for economy.

The 2stroke engine despite today's campaigns for pro 4stroke consumerism is a lighter weight, less complicated and by far, cheaper platform to build a racing chassis around. In addition, CC for CC 2strokes make more power than 4strokes typically by about 33% AND with a more simple design.

Although All250R 2-Stroke Motorsports can be considered a Honda TRX250R roots effort, All250R welcomes and pursues all useful content related to the preservation, development and usage of all 2stroke motors. Other related usages such as the ATC, CR motorcycle, Suzuki quadracer, Banshee and next generation DI platforms should also be noted. The 2stroke platform is one of the most popular, usable and flexible small racing and utility motors ever created. Superiority through simplicity.

Why waste your money on a rotating cam and other moving parts that wear out when all you need are some carefully designed holes, like these?
86 TRX250R cyl - by All 250R

All 250R Parts Orders:
All 250R is the cheapest you'll find for the price of the part for items such as OEM replacement parts, carburetors, Hinson clutch parts, Roll Design items and more, but to get these ultra-budget prices customers will get a custom quote, and phone order taking slightly longer than ordering from a warehouse.
Here is when you should and shouldn't come to All250R for the best deal on parts:

Order at All 250R:
* deepest discount on orders totaling greater than $100
* ability to wait a week for delivery of part(s)
* 951-595-7189

Look to local dealer:
* orders under $100
* need part(s) within a couple days

**Thanks for stopping by and supporting All 250R 2-stroke motorsports, the TRX250R, and the preservation of 2stroke power.

Update - newest excellent product addition:
All 250R is now a dealer for Hinson products. Everyone knows they make excellent quality products. Ask and you shall receive.
Hinson baskets for the TRX250R w/Fibers - special Works edition
Special Works edition of the TRX250R basket with 12 fingers instead of 10 spreading out the wear friction to two extra fingers resulting in even longer basket life. Comes with CR125 clutch plates. $205 + $12 ship - an incredible deal for a billet Hinson basket.

Roll Design kick up pegs offerd almost exclusively by All 250R for the 88-9 TRX 250R are currently in stock and for sale at $199 + $12 ship (86-7 will not be available without 30-40 preorders. Check the forum for a comittment tally). This is the best price in the market for these pegs! The kickup pegs are one of the best upgrades you can give your TRX for foot stability and confidence. These pegs were very popular when originally in production, and now they are back by popular demand. Support the R and your feet with a pair of these worthwhile pegs. all250r1@all250r.com, 951-595-7189.

click for better view


Discussion Forum/Bulletin Board Now Open:
 All 250R Board Forums
All250r.com has built a forum for owners to discuss and ask questions about TRX250R and other 2-stroke or technical issues.

Please note: This is YOUR board made up primarily of YOUR content. All 250R will not charge you, hopefully not lose all your posts, or abandon you due to lack of interest. This message board recognizes its members and their posts as invaluable. THANK YOU for logging in and keeping 2strokes and the 250R where they belong, in the hands of our white knuckles.


All250R design - brand products:
Open pod airfilter bracket - NO Reed Spacer for your CR boot intake tract
Click here for carburetion items in stock or email all250r1@all250r.com.


All250R Engine Building and Services:
Quality and care, the first time, every time.




 
Good reads:
8/2010: The AMA has published a short statement with the following title: New plan adds 40,000 acres for off-highway riding at Glamis" If "eco-dictators" can lose a battle like this at a pace that keeps up with their inclination to restrict human life, a more moderate perspective on regulation and the natural order of life maybe stands a much needed chance. Click here for a map of the massive closures we're currently struggling against... It's a amazing...
4/2010: Here's a short but unbiased article on BRP's bid to remain in the two stroke industry despite the EPA ratchet-down that has the japanese businessmen pushing 4stroke dogs8it to powersports: BRP's bid for 2012 2strokes!
12/09: Everyone HAS to listen to this Yamaha TZ750 2stroke and contemplate what it was like when engineers could build an engine with nothing else in mind than power output: AMA banned Yamaha TZ750
 7/09: I found another 2-stroke site that I think deserves some attention. It's nice to see other people out there that feel the same way I do. Kinda gives you that "I'm not crazy after all" feeling. Please check out: twostrokemotocross.com
7/09: From the above site about the develoment of production 2stroke motorcycles from Service Honda entering pro racing: twostrokemotocross.com/Pro 2stroke production
Wiseco quality. There is speculation in some tight circles that the company is in a downhill slide. Is this video on their notorious crankshafts an idication of that (Thanks David)?
Another EvinRude pro 2-Stroke ad "Superior to 4strokes... in every category" - (power and emissions)
Funny one - 4Strokes hurt lol
YFZ450 with a Yamaha 350RZ Banshee motor - I want this! 
YFZ450 with a Yamaha 350RZ Banshee motor - Part 2, Riding it. 
2strokes next generation, EVERY advantage over a 4stroke - http://www.youtube.com/watch?v=viWhxvo6DLk 
Buying a TRX250R. - Here are some tips and pictures on what to look for and ways to avoid issues and money loss (Jason Barton).
TRX250R, Made only 4 years. Why? - The quad stood on many poduims for a long, long time. People wonder, why so short then?  (Jason Barton)
2strokes and new(ish) 4's. - A technical perspective on advancements in technology (Jason Barton).
Oh what's that you say? A modern 500cc 2stroke? - "No... who would build that?? After all, dirt Wheels doesn't promote 2strokes!(??)" :) 
Honda GP racer - converted to hp: 90.72hp - not bad for 250cc.
Contains an historical outline of when 4strokes were run out by emerging 2stroke tech. - 4strokes are not returning for performance reasons.
world.honda.com/environment... - Honda describes their intentions to replace their 2strokes with more "environment friendly" 4strokes. Scroll down to the "Motorcycles" section. Check out "Power Equipment" too. *Note Honda has abandoned this page in favor of their touchy feely "Green" campaign stuff - brutal...
2stroke vs 4stroke maintenance costs - Reality Check (from LASleeve.com)
Another interesting etech ad - They seem to detest 4strokes. So these ads are fun.


All250R endorsed vendors and service providers:
This is a small section for vendors or service providers All250R 2-Stroke Motorsports has directly dealt with and had a positive experience. The intention is to be able to give 2-stroke preservationists a reasonable bet that if they went to these businesses that they would have a good experience.
Seat restoration



Useful content:
 Some main Glamis GPS coordinates

Keihin jetting charts

The TRX250R 89 clutch setup:
is considered a better designed lifter configuration because of the use of a flat axial bearing instead of a single ball. That is one of the few significant changes between the 88 and 89 model years. The part number for the entire matching parts kit is:
06220-HB9-305
At servicehonda.com you'll save about $8 over purchasing each individually. It includes these 5 parts:
pressure plate-22351-HB9-741
washer-90459-360-000 - For some reason this part doesn't show on the Honda fiche. Here it is though (12.5mm washer).
bearing-91001-147-006
pushrod end-22352-KAE-770
pushrod-22851-HA2-670


Quality rants about issues with 4strokes:
Rider Rants

Pictures of the 4 Honda TRX250R models
The very first TRX250R - 1986. The 86 and 87 came in white with red or blue.


The 87 displayed slightly different graphics and a few relatively minor modifications (click for the larger other pic).


The 88 looked very different and with the shortened swingarm, handled a bit different too (click for the large version).


The 89 displayed different graphics and color from the 88 but with a couple minor upgrades to minor parts, was largely unchanged. I have heard that this year was the least produced and is the most rare.