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Old 07-08-2013, 04:06 PM   #16
orangebear
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Originally Posted by ShapeShifter View Post
Here are a few other mini thumpers I have built. All street legal except the yellow Z50.
















What size frame is the white pit bike would it be crf70 size or just a crf50 size
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Old 07-08-2013, 06:05 PM   #17
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Originally Posted by orangebear View Post
What size frame is the white pit bike would it be crf70 size or just a crf50 size
That was a 2003 XR50 frame that was converted to enduro. Impossible to convert in CA anymore....that I am aware of.
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Old 07-08-2013, 08:13 PM   #18
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Originally Posted by ShapeShifter View Post
Thanks all. Its fun. This is the 8th custom mini bike I have built. As you can imagine, the 8 inch wheels don't exactly glide over the obstacles like a bigger bike but it makes a fun and challenging ride.

These pics were taken between 6000 and 8000 feet near Fordyce Lake. About 40 miles North East of Lake Tahoe.
ok thats kind of far. i live about a half hour from yosemite.
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Old 07-08-2013, 08:22 PM   #19
ben2go
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Originally Posted by ShapeShifter View Post
Oh hell yeah! I don't know if I can get one in CA but I will have one eventually...
It is supposed to be CA emissions approved.The Grom is a little bigger than the older CT50/70 monkey bikes.There are already a lot of mod for them including a 200cc BBK but it ain't cheap and requires a special engine case and head to make it all work.The forum below is the best place to start for mods.These bikes are based on the MSX125.

http://www.gromforum.com/




Specifications
ENGINE
Engine Type 124.9cc air-cooled single-cylinder four-stroke
Bore And Stroke 52.4mm x 57.9mm
Compression Ratio 9.3:1
Induction PGM-FI with automatic enrichment
Ignition Electronic
Valve Train SOHC; two valves per cylinder
DRIVE TRAIN
Transmission Four-speed
Final Drive Chain
CHASSIS / SUSPENSION / BRAKES
Front Suspension 31mm inverted fork; 3.9 inches travel
Rear Suspension Single shock with steel box-section swingarm; 4.1 inches travel
Front Brake Single 220mm disc with hydraulic dual-piston caliper
Rear Brake Single 190mm disc with hydraulic single piston caliper
Front Tire 120/70-12
Rear Tire 130/70-12
DIMENSIONS
Rake 25°
Trail 81mm (3.2 inches)
Wheelbase 47.4 inches
Seat Height 29.7 inches
Fuel Capacity 1.45 gallons
Curb Weight 225 pounds (Includes all standard equipment, required fluids and full tank of fuel—ready to ride)
OTHER
Model Id Grom125
Emissions Meets current EPA standards. Models sold in California meet current CARB standards and may differ slightly due to emissions equipment.
Available Colors Metallic Black, Pearl Red
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Old 07-08-2013, 10:04 PM   #20
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Originally Posted by ben2go View Post
It is supposed to be CA emissions approved.The Grom is a little bigger than the older CT50/70 monkey bikes.There are already a lot of mod for them including a 200cc BBK but it ain't cheap and requires a special engine case and head to make it all work.The forum below is the best place to start for mods.These bikes are based on the MSX125.

http://www.gromforum.com/
I guess I am way behind the eight ball. I knew about the MSX125 but I had never heard of the Grom until today. I called my local dealership as soon as I new what was what. Closed on Mondays.
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Old 07-08-2013, 10:13 PM   #21
ben2go
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Originally Posted by ShapeShifter View Post
I guess I am way behind the eight ball. I knew about the MSX125 but I had never heard of the Grom until today. I called my local dealership as soon as I new what was what. Closed on Mondays.
US hasn't gotten them yet.Only Europe and some Asian countries.Of course the Germany and I think Thailand are way ahead of the US on mods because of the early release there.
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Old 07-09-2013, 12:55 AM   #22
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They cost about £3000 new in the uk and look about the kzr size and should be a quick swop to fit a xy160 a full motor swop.
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bmw r100gs i ride it all year round
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road legal stomp pitbike sold
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Honda xl125rc powered by a cg125 block fun wee bike
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Old 07-09-2013, 11:53 AM   #23
ben2go
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Originally Posted by orangebear View Post
They cost about £3000 new in the uk and look about the kzr size and should be a quick swop to fit a xy160 a full motor swop.
Please keep us notified if you hear or see anything about the xy160 swap.I know the honda Grom motor has a 180cc BBK but requires a special head to make the swap.There is also a programer,fuel injector,and larger TB for it to work.
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Old 07-09-2013, 12:18 PM   #24
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In the photos, the one looks like a Skyteam PBR or Pitster Pro Mini Monster (which is made by Skyteam I believe. How did you like that little beast?
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Old 07-09-2013, 12:40 PM   #25
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Originally Posted by Birdmove View Post
In the photos, the one looks like a Skyteam PBR or Pitster Pro Mini Monster (which is made by Skyteam I believe. How did you like that little beast?
Im not not sure what picture you are talking about but I have never owned a Pitster or a Skyteam . I try to stay all Honda if possible.

You mean the Monkey-R? That is a CA legal 1988 Honda Monkey-R that I re-powered. Honestly, it scared the shit out of me. Something about the geometry did not feel stable to me even with the Hayabusa steering damper I put on it. I kept the engine and sold the roller for $2k.
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Old 07-09-2013, 01:24 PM   #26
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I was talking about the 5th photo down. I didn't know Honda made one like that. Looks like this bike:

http://www.superiorpowersports.com/S...stt125mc-p.htm
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Old 07-09-2013, 01:32 PM   #27
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looks like a 1988 ZB50 to me?
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Old 07-09-2013, 04:04 PM   #28
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Originally Posted by The Letter J View Post
looks like a 1988 ZB50 to me?
Almost - the ZB50 was sold in the U.S. and had different lights, bars, foot pegs, and drum brake in front but was the last street legal mini bike from Honda until the Grom125 (though the ZB had 10" wheels and was a50cc four speed).

The Monkey-R was sold in Japan only and came with different bars, lights and fenders, rearsets, and hydrolic disc brake in front. The frames are very similar to the ZB50 but the Monkey-R has a few different weld tabs and no holes in the frame for rear brake lever. My Monkey-R had a California registration which makes it very rare. Honda also made a Monkey-RT for the Japanese market which had taller bars but the same lights as the R.

ShapeShifter screwed with this post 07-09-2013 at 04:13 PM
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Old 07-09-2013, 04:07 PM   #29
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Originally Posted by ben2go View Post
US hasn't gotten them yet.Only Europe and some Asian countries.Of course the Germany and I think Thailand are way ahead of the US on mods because of the early release there.

Well call me impulsive but I learned about the Grom yesterday and I just put down a deposit on a red one. Should be here next month. I blame J for telling me about it.
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Old 07-09-2013, 04:53 PM   #30
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Ha! You're welcome!

I like to imagine what I'd do when I win the lottery and very near the top of that list is one each of every variety of horizontal Honda powered bikes. Looks like you've got a great start on that. I've had quite a few and miss my CA plated '03 XR50 the most, you cannot ride a mini without smiling! I showed my wife the Grom the day they went up on American Honda's site and she instantly said "we need 2 of those!"

There are a couple threads on them here on ADV: http://advrider.com/forums/showthread.php?t=854310 and: http://advrider.com/forums/showthread.php?t=887153

BTW, the Grom engine is from the "wave" family and doesn't share parts with older 50/70/90 engines so the yx160 is kind of a step backwards, it should be REAL easy to get big power/ displacement out of the MSX125/Grom.
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