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Who rides the Maruishi MT18?

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Who rides the Maruishi MT18?

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Old 05-16-18, 06:19 PM
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prairiepedaler
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Who rides the Maruishi MT18?

Does anyone here ride the Maruishi MT18? It's a Japanese made, steel, lugged frame. The tubing decal states cro-mo tubing but no other MFG / calibre identifiers.
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Old 05-18-18, 10:29 AM
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I haven't ridden one but have seen a few. The MT18,(aka Mountace), came out circa 1984. The frames were initially plain gauge CrMo. In 1985, it was upgraded to double butted CrMo and lighter rims, dropping almost 2 lbs. While the tubing decal was generic, the 1985 version stated "butted frame tubes". Since you don't mention this, I assume you have the 1984 model. The tubing, at least in 1985, was made by Ishiwata. If you remove the fork, there may be a manufacturer's logo and date code,on the steerer tube. The serial number should also tell us the manufacturer date and consequently, the model year. The seat post size,is a good indicator of tubing grade.

The components were mostly top notch for the day. The only thing really holding a 1984 MT18 back from being called high end, was the plain gauge tubing and Japanese heritage, though even that was arguable.
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Old 05-19-18, 03:33 PM
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Hi T-Mar, useful info as always. I bought this Mountace because of the size of frame and it's 3 water bottle mounting points. The metallic sea green/blue is nice but the rust is bad in parts. It's a candidate for a partial or full re-paint. I'll see about some photos for posterity beforehand. It uses a 180mm Takagi Tourney crankset, MC-70 cantilevers, Shimano MT-700 thumbshifters, Deerhead derailleurs, steel Tange BB and headset, Suntour XC-II pedals. The rear derailleur is history, snapped off casting where it mounts to the frame. The bike was rough housed at some point. Perhaps that straight guage tubing helped it survive a bit better. The wheels don't appear original (steel hubs). I wouldn't have bought it but for $20 the parts would be at least useful for another bike if need be. Everything is off the frame now, which required some effort due to seizing. I had a looksee at the seatpost under a magnifying glass but couldn't spot a diameter stamp.
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Old 05-20-18, 10:34 AM
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Yes, the wheels are definitely replacement, as even in 1984 the hubs were Deore XT. I'd appreciate the serial number for my database. If you don't want to post it, send it via PM. TIA.
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Old 05-22-18, 10:32 PM
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Originally Posted by T-Mar View Post
Yes, the wheels are definitely replacement, as even in 1984 the hubs were Deore XT. I'd appreciate the serial number for my database. If you don't want to post it, send it via PM. TIA.
Hi, sure. I'll have a look and get back to you. Too bad about the wheels. The rims are Araya alloy but the Co-op gets the set as I've no use for them.
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Old 05-25-18, 12:08 PM
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Ok, here are some pictures of the 9.5 pound frame, in all its' quadracep burning glory.
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Old 05-25-18, 01:29 PM
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That's a nice looking bike! Looks like the chain stays are long ...

https://www.ebay.com/itm/Maruishi-Mo...t/132589800365

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Old 05-25-18, 01:33 PM
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I like the kangaroo on the head badge
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Old 05-25-18, 05:26 PM
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The Kangaroo must mean it's an Australian Stumpjumper of sorts. I know, I know.

It's funny, I've got two old frames that are very similar; the Maruishi and a similarly aged LeeWorld

I haven't done anything yet with the LeeWorld but just today dragged it out to compare the two frames. Identical geometry, near identical wheelbase proportions, fork rake and overall length. A few subtle differences and that's all. The LeeWorld received another application of Release-All (it has a stuck seatpost that is deeply inserted). I have to tap the seatpost, run a bolt down and go medieval on it with a slidehammer. Not fun. Tough to choose which of these frames to re-paint and bring back to life.
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Old 11-15-18, 12:13 AM
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Just thought I'd chime in...I recently acquired a Maruishi Mount Ace 18 in pristine condition. I was searching for a ('name-brand') 80's vintage (21" - I'm tall) mtb and found this bike on CL. Seller claimed it's a 1986 model. I'd never heard of Maruishi mtbs, which perpetuated my 'inter-web' search, which resulted in finding this forum and thread. It was (and still is) in such good, original condition, I just had to buy it. It's a metallic dark blue frame and fork with a bull-moose handlebar painted to match. The seat tube sticker just says "MTB", and the unicrown fork sticker says "Tange ATB". All the naming graphics on the frame are painted (not decals/stickers) in silver. As far as I can tell, all the components are original, except for the saddle, tires, and possibly the pedals and handlebar grips. It's all Shimano equipped (deer head derailleurs, friction thumb shifters, cantilever front brake, brake levers, Biopace crankset) except for the Suntour rear U-brake and Suzue high-flange hubs. It has alloy rims, but no identifying stickers. I'd like to learn more about Maruishi mtb's, but have not found anything of any substance. I'm only guessing, but after comparing this Maruishi Mount Ace 18 to same period Fisher Montares and Specialized Stumpjumpers, I'm wondering if they were all made in Japan by the same manufacturer??

Last edited by 2HIP; 11-15-18 at 07:13 AM. Reason: additional clarifying info
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Old 11-15-18, 07:20 AM
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Originally Posted by specialmonkey View Post
I like the kangaroo on the head badge


Originally Posted by prariepedaler View Post
The Kangaroo must mean it's an Australian Stumpjumper of sorts. I know, I know.

I just saw these posts because of the bump and thought you might be interested in the story behind the kangaroo mascot. Maruishi started importing British bicycles in 1884, when bicycles were the penny farthing style (aka hi-wheeler or ordinary) with a very large front wheel and very small rear wheel. The Japanese had seen a British gentleman riding one, dressed in a swallow tail coat, and thought he looked like a kangaroo running in the fields. The description spread and "kangaroo" became Japanese slang for "bicycle" in late 19th century, resulting in Maruishi adopting it as their logo.

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Old 11-15-18, 08:39 AM
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That’s an awesome and interesting story!!!
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Old 11-15-18, 08:57 AM
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Originally Posted by 2HIP View Post
Just thought I'd chime in...I recently acquired a Maruishi Mount Ace 18 in pristine condition. I was searching for a ('name-brand') 80's vintage (21" - I'm tall) mtb and found this bike on CL. Seller claimed it's a 1986 model. I'd never heard of Maruishi mtbs, which perpetuated my 'inter-web' search, which resulted in finding this forum and thread. It was (and still is) in such good, original condition, I just had to buy it. It's a metallic dark blue frame and fork with a bull-moose handlebar painted to match. The seat tube sticker just says "MTB", and the unicrown fork sticker says "Tange ATB". All the naming graphics on the frame are painted (not decals/stickers) in silver. As far as I can tell, all the components are original, except for the saddle, tires, and possibly the pedals and handlebar grips. It's all Shimano equipped (deer head derailleurs, friction thumb shifters, cantilever front brake, brake levers, Biopace crankset) except for the Suntour rear U-brake and Suzue high-flange hubs. It has alloy rims, but no identifying stickers. I'd like to learn more about Maruishi mtb's, but have not found anything of any substance. I'm only guessing, but after comparing this Maruishi Mount Ace 18 to same period Fisher Montares and Specialized Stumpjumpers, I'm wondering if they were all made in Japan by the same manufacturer??

Welcome to the forums. I'm not quite sure what to make of your bicycle. It doesn't fit any literature that I have for 1984-1986, which were the only years for the 1st generation Deore XT rear derailleur (aka deer's head). Shimano didn't introduce their U-brake until 1987, though SunTour had their XC Roller-Cam, which fit U-brake bosses, as early as 1985. Still, the 1985 and 1986 literature specs Shimano cantilevers and Ishiwata tubing. Maruishi was atypical in that they continued to spec large flange hubs on their ATBs into at least 1986, so the wheels may be OEM.


Regarding the lineage, the few serial numbers I've been able to collect for mid-1980s Maruishi ATBs have all had a Maruishi serial number format. I have yet to come across any Specialized or Fisher ATBs with a Maruishi serial number format. One brand that was contract manufactured by Maruishi during this period was Nashbar. FWIW, the 1986 Nashbar Terra XT, which was their Deore XT model, used Ishiwata tubing with Deore XT cantilever brakes (front and back) and large flange hubs.


It would be appreciate if you could post your serial number and some pictures of your bicycle.TIA.
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Old 02-06-19, 06:18 PM
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I know these are very old post, but I wanted to chime in as well. I actually have two of these bikes, an 18" & 21". Mine are from 1985, they are Ishiwata butted tubes with Tange forks. Both bikes are in perfect condition. The 18" frame probably has no more than 200 miles on it. The 21" has no more than 400 miles on it. The bikes are 100% original. If I get any replies, I'll post some pics.
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Old 02-06-19, 08:11 PM
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I tried hard to buy one of these a few yeaars back. It had a Takagi XT crank, Same blue/green. I thought it had a small steerer on the bullmoose bars but couldn't measure before it was gone.
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Old 02-08-19, 09:47 PM
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Ok Nitro, blast away with some photos! I still have my MT-18 frame (as pictured). If anything, I'd stylistically section off the rusty portion of the bottom bracket area and administer a repaint with a colour of similar hue to the original.
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Old 02-08-19, 09:49 PM
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Originally Posted by clubman View Post
I tried hard to buy one of these a few yeaars back. It had a Takagi XT crank, Same blue/green. I thought it had a small steerer on the bullmoose bars but couldn't measure before it was gone.
Yep, that is the crank this one has - 180mm.
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Old 02-08-19, 09:53 PM
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Originally Posted by specialmonkey View Post
That's a nice looking bike! Looks like the chain stays are long ...

https://www.ebay.com/itm/Maruishi-Mo...t/132589800365
Hard to believe someone wanted it enough to pay $500 for! One could do worse but I really don't see anything special about this frame. It certainly isn't super light by any stretch.
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Old 02-11-19, 12:03 PM
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Originally Posted by prairiepedaler View Post
Ok Nitro, blast away with some photos! I still have my MT-18 frame (as pictured). If anything, I'd stylistically section off the rusty portion of the bottom bracket area and administer a repaint with a colour of similar hue to the original.
I'm not allowed to post URL's until I have 10 posts. I'll work on it...
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Old 02-12-19, 09:35 PM
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Pics of my Mountain Ace 18

So here are some pics. Working on the rear wheel. Will post more when done...


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