Wiseco Bottom End Rebuild Kit

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Wiseco Bottom End Rebuild Kit
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    Wiseco Bottom End Rebuild Kit

    Our Price: $152.99$549.99

    MSRP: $224.95 - $614.95 - You save up to $71.96 (32% off)

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    Details

    • Bottom End Rebuild Kit includes crankshaft assembly, complete bottom end gasket kit, and bearings.
    • Everything you need in one box.
    • Complete gasket set with all engine seals and O-rings.
    • OEM grade main bearing for ultimate smooth operation.
    • Double forged for ultimate strength and durability.
    • Shot peened to remove residual stress and smooth surface blends.
    • Coated bronze thrust washers with dimpling to improve oil retention and reduce friction.

    Wiseco Bottom End Rebuild Kit Reviews

    Each review submitted enters you into a
    $100 gift card monthly drawing and a
    $500 gift card quarterly drawing!
     
    4.3 / 5.0
    28 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    18
    5
    2
    2
    1
    Value
    4.7 / 5
    Durability
    4.4 / 5
    Fitment
    4.6 / 5
    Performance
    4.4 / 5
    Recommend it?
    Yes (28)
    Value
    5 / 5
    Durability
    5 / 5
    Fitment
    5 / 5
    Performance
    5 / 5
    Recommend it?
    Yes
    Perfect fit!
    For perfectly and came with everything needed to replace the bottom end. Installation made easy with Tusk's crankshaft installation tool.

    -m-1995 KAWASAKI KX250--
    June 15, 2018
    Running Springs, CA, US
    Purchased
    2 months ago
    Value
    5 / 5
    Fitment
    5 / 5
    Performance
    5 / 5
    Recommend it?
    Yes
    Need to include O ring
    Product worked well. Only problem was kit said it came with everything you need to do the bottom end but the yz has a O ring in the center of the cases that was not included ?? had to stop working and get O ring.

    -m-2003 YAMAHA YZ250--
    User submitted image
    ?
    June 12, 2018
    Fontana , CA, US
    Age: 45-64
    Purchased
    2 weeks ago
    Gender:
    Male
    Weight:
    221 - 250 lbs.
    Height:
    5'10 - 6'0
    Value
    5 / 5
    Durability
    5 / 5
    Fitment
    5 / 5
    Performance
    5 / 5
    Recommend it?
    Yes
    Great kit
    I’ve had nothing but a great experience shooing here at Rocky Mountain . Easy and fast shipping . Thank you all at Rocky Mountain .
    June 6, 2018
    Windham, ME, US
    Purchased
    4 weeks ago
    Value
    5 / 5
    Durability
    5 / 5
    Fitment
    5 / 5
    Performance
    5 / 5
    Recommend it?
    Yes
    Excellent
    Everything you need in one box. Excellent!

    -m-2001 KAWASAKI KX250--
    June 5, 2018
    Cato , NY, US
    Age: 25-44
    Purchased
    3 weeks ago
    Gender:
    Male
    Weight:
    191 - 220 lbs.
    Height:
    6'1 - 6'3
    Value
    3 / 5
    Durability
    1 / 5
    Fitment
    5 / 5
    Performance
    1 / 5
    Recommend it?
    Yes
    Only install if your selling the bike
    Used a couple of these over the last couple years. Although convenient and cheap, you get what you pay for. Should not be used for racing!! I installed one last Nov. and it exploded last weekend destroying both cases and my top end including my new cam and valves. Bike is obsessively maintained. I should have heeded the warnings posted on the forums. Probably be fine for a trail bike but not for hard use.
    May 31, 2018
    Falmouth, MA, US
    Age: 25-44
    Purchased
    7 months ago
    Gender:
    Male
    Value
    5 / 5
    Durability
    5 / 5
    Fitment
    3 / 5
    Performance
    4 / 5
    Recommend it?
    Yes
    Bad gaskets
    Two of the gaskets leeked if you buy this kit i would buy another brand of gaskets
    March 28, 2018
    Rigby, ID, US
    Purchased
    3 months ago
    Gender:
    Male
    Value
    5 / 5
    Durability
    5 / 5
    Fitment
    5 / 5
    Performance
    5 / 5
    Recommend it?
    Yes
    Only aftermarket Crank Kit I will use.
    Have used Wiseco Crank kits and Pistons for quite a few years and never had any issues what so ever. And my son is particularly hard on anything with two wheels.

    -m-DIRT BIKE--
    March 26, 2018
    Newmanstown, PA, US
    Age: 25-44
    Purchased
    4 months ago
    Gender:
    Male
    Weight:
    191 - 220 lbs.
    Height:
    5'10 - 6'0
    Value
    4 / 5
    Durability
    4 / 5
    Fitment
    5 / 5
    Performance
    4 / 5
    Recommend it?
    Yes
    Great shipping and nothing damaged
    -m-2001 YAMAHA YZ125-- got great and so far it’s running good
    March 12, 2018
    Dallas, GA, US
    Age: 15-24
    Purchased
    3 months ago
    Gender:
    Male
    Weight:
    191 - 220 lbs.
    Height:
    5'10 - 6'0
    Value
    5 / 5
    Durability
    5 / 5
    Fitment
    3 / 5
    Performance
    5 / 5
    Recommend it?
    Yes
    12 hours after use
    2003 KX250 rebuild
    I bought this rebuild kit because I had an interior seal seaping into the combustion chamber and you have to split the case to change it.
    This caused a very low end bog off throttle.

    PROS- it works fantastic so far. I am about 12 hours into it.
    It’s cheap! Make sure you know what your doing though.

    CONS- As other reviews have said two gaskets did not fit correctly and were unusable.
    This is subpar quality compared to OEM.
    Gaskets are paper and crank uses plastic where aluminum there before.

    I believe this has been stated by previous reviews. There were two gaskets

    -m-2003 KAWASAKI KX250--
    February 22, 2018
    Midland, TX, US
    Age: 25-44
    Purchased
    5 months ago
    Gender:
    Male
    Weight:
    161 - 190 lbs.
    Height:
    5'10 - 6'0
    Recommend it?
    Yes
    Quality control issue??
    Overall it seemed like a quality crank and it comes with Koyo mains which is a plus. I however had a issue when it came to verifying the timing. The key way groove was off so far that I had to slit my stator plate to achieve factory timing specs. I contacted Wiseco and received no response. I won’t buy another.

    -m-2006 YAMAHA YZ250--
    February 20, 2018
    Auburn, NY, US
    Age: 45-64
    Purchased
    4 months ago
    Gender:
    Male
    Weight:
    191 - 220 lbs.
    Height:
    6'1 - 6'3
    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 15 questions Browse 15 questions and 65 answers
    Does this kit come with the gaskets and seals necessary for the top end too, or is it just for the bottom end?
    Martin O on Dec 25, 2016
    BEST ANSWER: The kit i received for my '02 YZ250 came with gaskets and seals for the bottom end only. Heads up, I received more seals and o-rings than I could use... I suspect this is a kit that they sell for multiple years that may need different seals and o-rings. Also, note that the kit only includes the main bearings; none of the transmission bearings.
    does the crank kit come with a tube of sealer for the center of the case??
    bernie b on Feb 4, 2017
    BEST ANSWER: I recently purchased the Wiseco bottom end rebuild kit for a '02 YZ250. Mine DID NOT come with a tube of sealer for the the center of the case. I ended up using Permatex Ultra Grey gasket maker and it worked great.
    Are these cranks made in China?
    David B on Mar 26, 2017
    BEST ANSWER: For the yz85 one I purchased? All signs point to made in China. Nothing real visible on the crank itself but the box said China. I have about 1 hour on it so far so good. Installed great, everything fit.
    Can you install a oem piston on this crank?
    Fernando M on Jun 13, 2018
    BEST ANSWER: Yes you can install OEM piston on this crank. the specs are the same for the rist pin
    Are these cranks pre balanced and trued?
    Charles G on Dec 15, 2017
    BEST ANSWER: I believe they are, the only way to know for sure would be to contact wiseco. I've used several of wiseco bottom end kits and have been very happy with them. No issues. I have one now in my CRF450r and I race it in Hare scrambles in Fla.
    Mitch rides Red
    Does it come with a woodruff key?
    JOSHUA C on Mar 30, 2017
    BEST ANSWER: I just installed one on an old YZ250 and it did not come with the woodruff key. Other than that, the kit was perfect and had everything else you need.
    Does this come with the clutch cover gasket?
    TODD C on Aug 13, 2017
    BEST ANSWER: Todd, yes it does come with the gasket. However, the gasket I received in my kit was universal fitting kx 250 from 94-04 and it didn't seal well.
    Are these cranks pre balanced and trued? Anyone have any vibration issues with them? Thanks
    Charles G on Dec 15, 2017
    BEST ANSWER: Yes they are. As for any vibration I have never noticed any. I have used many Wiseco cranks and but 200+ hours on them with no problems.
    Does this come with both seals for the water pump?
    Bryant B on Feb 26, 2018
    BEST ANSWER: yes
    Will this fit a 1990 ktm 125 exc?
    A shopper on May 24, 2017
    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 2017 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.
    How do I get a bottom end rebuilt kit for a 97 kawasaki KX 125 k4?
    ken l on May 20, 2017
    BEST ANSWER: I looked into our inventory and we unfortunately do not have a bottom end rebuild kit for this machine. I'm sorry for the inconvenience.
    will these crank kits work on a 1995 yz 250?
    Lyle B on May 2, 2017
    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 2017 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.
    would like to know if this crank kit will fit a 1995 yz 250 and not is thier one avaiable ?
    Lyle B on Apr 23, 2017
    BEST ANSWER: I looked into this for you and unfortunately this rebuild kit will not fit the 1995 yz250. I checked the rest of our inventory and it looks like the only thing we have available for you machine is the Pro X Connection Rod Kit. I'm sorry for the inconvenience.
    this kit fit a yz125 2003 2 stroke?
    Amelia A on Feb 6, 2017
    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 2017 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.
    Will this kit fit a 2002 RM250?
    Gerald L on Dec 4, 2016
    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.
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