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Flex-Hone Cylinder Ball-Hone

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Flex-Hone Cylinder Ball-Hone
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Flex-Hone Cylinder Ball-Hone

Our Price: $29.99$65.99

MSRP: $35.05 - $78.16 - You save up to $12.17 (16% off)

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Additional Videos

Flex-Hone - Cylinder Honing

How To - Hone A Cylinder

RM YouTube Channel
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Details

  • Easy to use cylinder hone that can attach to a standard hand drill or drill press.
  • Fast and efficient deglazing and finish honing, providing a consistent cross-hatch pattern for oil retention and piston ring seating.
  • Ball hone style features 320 grit globules of silicone carbide making it perfect for steel sleeved and Nikasil coated cylinders.
  • Several sizes available for optimal cylinder bore fitment.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Flex-Hone Cylinder Ball-Hone Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
4.9 / 5.0
114 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
108
4
2
0
0
Value
4.7 / 5
Durability
4.8 / 5
Ease of Use
4.9 / 5
Performance
4.9 / 5
Recommend it?
Yes (57)
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
Brush Research Flex Hone
My shop has about 15 of these hones in different sizes and materials. We have used these on our engine rebuilds for 20yrs, quality product with excellent results.

-m-DIRT BIKE--
December 29, 2019
Maypearl, TX, US
Age: 45-64
Purchased
1 month ago
Gender:
Male
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
Worth every penny. Works great for us DIY’rs. Definitely recommend.
I used the 77-83 ball hone in the cylinder of my 2008 YZ250F while doing a top end rebuild. Was a little bit hard getting it started in the bore. Once I got it going I used pretty slow RPMs and only moved it up and down the bore about 6 times. Turned out great. I recommend it.

-m-2008 YAMAHA YZ250F--
User submitted image
User submitted image
User submitted image
User submitted image
December 20, 2019
New Providence, NJ, US
Age: 25-44
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
The Hone was priced very competitively. The delivery was as quoted. The hone worked perfectly and was very easy to use.I will recommend Rocky Mountain to my friends when they are in need of similar tools.The year of the bike is not listed below, but it is a 1971 Honda CB 350.
December 19, 2019
LAWRENCEVILLE, GA, US
Age: 65+
Purchased
1 month ago
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
65cc top end hone
Must have if rebuilding your top end. Worked good. Will use many more times. The fitment is good for a small range of size out of 65cc
December 14, 2019
Concord , NC, US
Purchased
1 year ago
Gender:
Male
Value
3 / 5
Durability
4 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great
Very easy to use. I was worried I might screw something up but it worked awesome. Perfect cross hatch pattern.

-m-DIRT BIKE--
December 13, 2019
Durango, CO, US
Age: 25-44
Purchased
2 months ago
Gender:
Male
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
Follow up!
Purchase a good honing oil and cylinder brush !

-m-1998 KTM 300 EXC--
September 25, 2019
Blairstown, NJ, US
Age: 45-64
Purchased
1 year ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
>6'7
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
Amazing product
Amazing product and worked perfectly to clean up my cylinder! Thank you for your amazing business and speedy shipping! Buy this product it works!!!!!!

-m-1987 YAMAHA YZ490--
August 29, 2019
Hawley, PA, US
Age: 15-24
Purchased
5 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
Perfect!!
Needed to do a quick rebuild on our KX250F this hone made the cyl look like new! Perfect cross hashes...

-m-2014 KAWASAKI KX250F--
August 23, 2019
Jacksonville, FL, US
Age: 15-24
Purchased
5 months ago
Gender:
Male
Weight:
<100 lbs.
Height:
5'1 - 5'3
Value
3 / 5
Durability
4 / 5
Ease of Use
4 / 5
Performance
5 / 5
Recommend it?
Yes
Worked well
Honed the cylinder when replacing the piston, no issues, just hooked to an electric drill.
July 19, 2019
Marvin , SD, US
Age: 25-44
Purchased
1 year ago
Gender:
Male
Weight:
251 - 280 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Ease of Use
5 / 5
Performance
5 / 5
Recommend it?
Yes
Must have if you do your own top end rebuild
Must have if you do your own top end rebuild. Scores cylinder and removes burrs/imperfections. Piston rings will last longer
July 17, 2019
Danbury, CT, US
Age: 25-44
Purchased
over 2 years ago
Gender:
Male
Weight:
191 - 220 lbs.
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 12 questions Browse 12 questions and 26 answers
Is this okay to use on a 02 kx85?i just don’t want to destroy the material but the rings went and the cross hits are not there anymore.
Nicholas H on Nov 11, 2017
BEST ANSWER: Sure, it works fine on plated cylinders, don't over do it just until you see a cross hatch pattern. Be sure to wash the cylinder with hot soapy water, it removes the honing residue better than solvent. Check your bore with a clean paper towel if it comes out with any dark marks wash it again!
What size should I buy for a 1996 cr 125?
A shopper on Jun 12, 2019
BEST ANSWER: The 52-54 mm hone is what you want.
Just wondering if this will work for my 2002 yz250 with an oversized 68.5mm piston? The description says good for 65 - 67mm. Thinking it should still work.
JOSHUA C on Mar 6, 2017
BEST ANSWER: Looking at the flex-hone chart, your next size up would be 70mm. Too big. We used the 64mm hone on a Yamaha RD350 with a standard 64mm bore. It was plenty snug. My guess is that you will have enough contact to do an even de-glazeing job on your YZ. We had no issue with the hone buggering up the chamfer on the ports: however, the direction of the hone was evident just by the crispness of the chamfer on the leading edge of the port. We would use this hone again. The ports appeared to have knocked off a lot of the initial abrasive on the hone, and this is normal.
I am looking at the hone for a 2019 kx450 but do not see what grit the hone is. I would prefer a 320 to 400 grit hone but do not know what this one is?
A shopper on Jan 10, 2020
BEST ANSWER: To my knowledge this a 350 grit. Twice in an twice out gave my cylinder a perfect pattern. Follow instructions and it is perfect.
Will this work on a 06 kdx50?
Josh W on Aug 3, 2019
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2020 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
Can I use this on my rm85???????
Manuel C on Feb 7, 2019
BEST ANSWER: I’d check the size of the cylinder but I used it on my Ktm 250 and loved it and if you do get it make sure you buy the oil to
What size do I need for a 13 KX450f? The 90-95mm or the 96-105mm. My piston is a 95.96mm, I don’t want to use the wrong one and mess up my cylinder.
A shopper on Nov 24, 2019
BEST ANSWER: I would use the 96-105.
I have a klr650 with 100 bore, would this be able to get me to the 100.2mm for the pro x piston kit ? if it isnt intended for increasing bore size, i'll get the 100mm kit.
Adr A on Nov 17, 2019
BEST ANSWER: A flex hone is only intended to restore crosshatch in the cylinder and remove glazing not to increase bore size.
what size should I use for my 2011 ktm sxf 350?
A shopper on Nov 12, 2019
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application.
Hi I noticed that these are silicon carbide flex hones, pretty well everything I've read about these so far has said that you should use aluminium oxide for nikasil plated cylinders and the company even promotes them specifically for ones nikasil plated. Obviously you guys wouldnt be selling something that wouldn't be good to use I'm just curious why you guys sell these ones over the other because I've read so much conflicting opinions on the matter and judging by the comments here these seem to have worked just fine for everyone who's bought one?
Peter W on Nov 3, 2019
BEST ANSWER: We use this style of hone on multiple machines. Here is a video we have of the product. https://www.youtube.com/watch?v=C7OpHrRkSQI&feature=emb_logo
Wich size would i choose for KTM sx65 with 45mm bore? And can i use some other oil?
Robin B on Sep 8, 2019
BEST ANSWER: Flex-Hone Cylinder Ball-Hone 42-45mm Part# 1284240001 | Mfg Part# BC13432, they recommend Flex-Hone Oil 8 oz. Part# 1284230001 | Mfg Part# FHP
What size tool should I use on a 2002 yz 250?
A shopper on Jul 9, 2019
BEST ANSWER: We suggest a 65-67 mm size.
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