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KST Kustoms 1-1/4" Polished 12" Mayhem Handlebar

J&P Cycles Part Number: 721-896

Manufacturer Part Number: 3213719-TBW

$275.00

Gold Club Price: $247.50

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Important Fitment Note

Non-TBW models require throttle-by-wire handlebar plug, part # 179-151 (sold separately) to complete installation. Will Not fit 2014-newer Road Kings. The points on the bottom interfere with the nacelle.

Description

Description for KST Kustoms 1-1/4" Polished 12" Mayhem Handlebar

• KST Kustoms handlebars are made of T304 ornamental grade stainless steel

• All handlebars have CNC mandrel bends

• Handlebars are knurled, with laser cut slots for internal wiring

• Notched for TBW, will also fit non-TBW models

• All handlebars will work with 1″ diameter controls and grips

Product Specs

Product Specs for KST Kustoms 1-1/4" Polished 12" Mayhem Handlebar

Center Width:
12"
Diameter:
1-1/4"
Drilled for Wiring:
Yes
Handlebar Width:
36-1/4"-40"
Manufacturer Part Number:
3213719-TBW
Material:
Stainless Steel
Pullback:
6"
Rise:
12"
Sold in Units:
Each
Style:
Ape Hanger
Warehouse Part Number:
1091107
Width:
37"
With/Without Dimples:
Without
Sizing

Handlebars Measuring Guide

To identify your handlebar needs, we recommend measuring your current handlebar's dimensions as a baseline.


To most closely match the measuring system used on our site, we recommend the following method:

Push a table against a wall. Prop up the handlebars in the corner where the table meets the wall, then rotate the bars forward until the front of the bars touch the wall. In this case, rise is the distance from the table to the highest point on the bars, with pullback measured from the wall to the farthest point back.

Diagram of Handlebar Measurements
Diagram of Handlebar Measurements
Width: Measure between the two outside points of the handlebars.
Center Width: Measure between the two inside points of the handlebars.
Rise: Measure from the base of the handlebars to their highest point.
Pullback: Measure from the front of the bars to the furthest point back.

Additional Considerations:

  • Handlebars for Springer Softails are different than bars for other bikes. Learn More
  • We offer bars in two groupings by year of fitment — pre–1982 and later models. The differences are the result of a change of configuration in the switch housings. Learn More
Fitment
Fitment Note:

Non-TBW models require throttle-by-wire handlebar plug, part # 179-151 (sold separately) to complete installation. Will Not fit 2014-newer Road Kings. The points on the bottom interfere with the nacelle.

Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

Compatible Models

Harley-Davidson® Models

  • Disc Glide Willie G Special FXDG : 1983
  • Dyna Defender FXDP : 2001–2004
  • Dyna Low Rider Convertible FXDS-CONV : 1994–2000
  • Dyna Low Rider EFI FXDLI : 2004–2006
  • Dyna Low Rider FXDL : 1993–2005, 2007–2017
  • Dyna Low Rider S FXDLS : 2016–2017
  • Dyna Street Bob EFI FXDBI : 2006
  • Dyna Street Bob FXDB : 2007–2017
  • Dyna Street Bob FXDBB : 2015–2016
  • Dyna Street Bob FXDBP : 2013–2016
  • Dyna Super Glide 35th Anniversary EFI FXDI35 : 2006
  • Dyna Super Glide Custom Anniversary FXDC : 2013
  • Dyna Super Glide Custom EFI FXDCI : 2005–2006
  • Dyna Super Glide Custom FXDC : 1992, 2005, 2007–2014
  • Dyna Super Glide CVO FXDSE : 2007
  • Dyna Super Glide Daytona FXDB-D : 1992
  • Dyna Super Glide EFI FXDI : 2004–2006
  • Dyna Super Glide FXD : 1995–1997, 1999–2005, 2007–2010
  • Dyna Super Glide Sport EFI FXDXI : 2004–2005
  • Dyna Super Glide Sport FXDX : 2000–2005
  • Dyna Super Glide Sturgis FXDB-S : 1991
  • Dyna Super Glide T-Sport FXDXT : 2001–2003
  • Dyna Switchback FLD : 2012–2016
  • Dyna Wide Glide CVO FXDWG2 : 2001
  • Dyna Wide Glide CVO FXDWG3 : 2002
  • Dyna Wide Glide EFI FXDWGI : 2004–2006
  • Dyna Wide Glide FXDWG : 1993–2005, 2007–2008
  • Electra Glide Anniversary FLH : 1978
  • Electra Glide Classic FLHC : 1979–1981
  • Electra Glide Classic Side Car FLHCE : 1979–1981
  • Electra Glide FLH : 1970–1978, 1981–1984
  • Electra Glide FLH-74 : 1980
  • Electra Glide FLH-80 : 1978–1980
  • Electra Glide FLHF : 1970–1975
  • Electra Glide Heritage FLH : 1981
  • Electra Glide Police FLHP : 1981
  • Electra Glide Police FLHP-74 : 1979–1980
  • Electra Glide Police FLHP-80 : 1979–1980
  • Electra Glide Police FLP : 1971–1972, 1974–1975
  • Electra Glide Sport FLHS : 1977, 1980–1984
  • Low Rider FXS : 1977–1978, 1981–1982
  • Low Rider FXS-74 : 1979–1980
  • Low Rider FXS-80 : 1979–1980
  • Low Rider FXSB : 1983–1985
  • Softail Convertible CVO FLSTSE2 : 2011
  • Softail Convertible CVO FLSTSE3 : 2012
  • Softail Custom FXSTC : 1986–1999, 2007–2010
  • Softail Deluxe EFI FLSTNI : 2005–2006
  • Softail Deluxe FLDE : 2018–2020
  • Softail Deluxe FLSTN : 2006–2017
  • Softail Deuce CVO FXSTDSE : 2003
  • Softail Deuce CVO FXSTDSE2 : 2004
  • Softail Deuce EFI FXSTDI : 2001–2006
  • Softail Deuce FXSTD : 2000–2007
  • Softail Fat Boy EFI FLSTFI : 2001–2006
  • Softail Fat Boy FLSTF : 1990–2006
  • Softail Heritage Classic 114 115th Anniversary FLHCS : 2018
  • Softail Heritage Classic 114 FLHCS : 2018–2020
  • Softail Heritage Classic Anniversary FLSTC : 2013
  • Softail Heritage Classic EFI FLSTCI : 2001–2006
  • Softail Heritage Classic FLHC : 2018–2020
  • Softail Heritage Classic FLSTC : 1987–2017
  • Softail Heritage EFI FLSTI : 2006
  • Softail Heritage FLST : 1986–1990, 2005–2006, 2008–2010
  • Softail Low Rider FXLR : 2018–2020
  • Softail Night Train EFI FXSTBI : 2001–2006
  • Softail Night Train FXSTB : 1998–2009
  • Softail Nostalgia FLSTN : 1993–1996
  • Softail Slim FLS : 2012–2017
  • Softail Slim FLSL : 2018–2020
  • Softail Slim S FLSS : 2016–2017
  • Softail Standard EFI FXSTI : 2001–2006
  • Softail Standard FXST : 1984–1990, 1999–2015
  • Softail Street Bob FXBB : 2019–2020
  • Sportster 1000 Café Racer XLCR1000 : 1977–1978
  • Sportster 1000 Electric Start Anniversary XLH1000 : 1978
  • Sportster 1000 Electric Start XLH1000 : 1974–1981, 1985
  • Sportster 1000 Kick Start XLCH1000 : 1973–1979
  • Sportster 1000 Roadster XLS1000 : 1979–1983, 1985
  • Sportster 1000 Touring XLT1000 : 1977–1978
  • Sportster 1000 XR-1000 : 1983–1984
  • Sportster 1100 Electric Start Anniversary XLH1100 : 1987
  • Sportster 1100 Electric Start XLH1100 : 1986–1987
  • Sportster 1200 50th Anniversary XL50 : 2007
  • Sportster 1200 Custom Anniversary XL1200C : 2013
  • Sportster 1200 Custom XL1200C : 2004–2020
  • Sportster 1200 Custom XL1200CA : 2013–2016
  • Sportster 1200 Custom XL1200CB : 2012–2017
  • Sportster 1200 Custom XL1200CP : 2011–2016
  • Sportster 1200 Custom XLH1200C : 1996–2003
  • Sportster 1200 Fort-Eight Special XL1200XS : 2020
  • Sportster 1200 Forty-Eight Anniversary XL1200X : 2018
  • Sportster 1200 Forty-Eight Special XL1200XS : 2018–2019
  • Sportster 1200 Forty-Eight XL1200X : 2010–2020
  • Sportster 1200 Iron XL1200NS : 2018–2020
  • Sportster 1200 Low XL1200L : 2007–2011
  • Sportster 1200 Nightster XL1200N : 2007–2012
  • Sportster 1200 Roadster XL1200CX : 2016–2020
  • Sportster 1200 Roadster XL1200R : 2004–2009
  • Sportster 1200 Seventy-Two XL1200V : 2012–2016
  • Sportster 1200 Sport XLH1200S : 1996–2003
  • Sportster 1200 Standard XLH1200 : 1988–2003
  • Sportster 1200 SuperLow XL1200T : 2014–2017
  • Sportster 883 Custom XL883C : 2004–2009
  • Sportster 883 Custom XLH883C : 1998–2003
  • Sportster 883 Deluxe XLH883 : 1988–1995
  • Sportster 883 Hugger XLH883 : 1988–2003
  • Sportster 883 Iron XL883N : 2010–2020
  • Sportster 883 Low XL883L : 2005–2010
  • Sportster 883 Roadster XL883R : 2005–2015
  • Sportster 883 Roadster XLH883R : 2002–2003
  • Sportster 883 Standard XL883 : 2004–2009
  • Sportster 883 Standard XLH883 : 1986–2003
  • Sportster 883 SuperLow XL883L : 2011–2020
  • Sturgis Belt FXB : 1980–1982
  • Super Glide Custom FXRC : 1985
  • Super Glide Disc Glide FXRDG : 1984
  • Super Glide Electric Start FXE : 1974–1984
  • Super Glide Fat Bob FXEF : 1980–1985
  • Super Glide Fat Bob FXEF-74 : 1979
  • Super Glide Fat Bob FXEF-80 : 1979
  • Super Glide FXR : 1986–1994
  • Super Glide FXR2 : 1999
  • Super Glide FXR3 : 1999
  • Super Glide FXR4 : 2000
  • Super Glide Grand Touring FXRD : 1986
  • Super Glide II FXR : 1982–1985
  • Super Glide Kick Start FX : 1971–1978
  • Super Glide Low Rider Anniversary FXRS : 1988
  • Super Glide Low Rider Convertible FXRS-CONV : 1989–1993
  • Super Glide Low Rider Custom Anniversary FXLR : 1987
  • Super Glide Low Rider Custom FXLR : 1987–1994
  • Super Glide Low Rider FXRS : 1982–1992
  • Super Glide Low Rider Sport FXRS-SP : 1987–1993
  • Super Glide Police FXRP : 1984–1994
  • Super Glide Sport Glide FXRT : 1983–1992
  • Tour Glide Classic FLTC : 1981–1983
  • Tour Glide FLT : 1980–1984
  • Touring Electra Glide Sport FLHS : 1987–1993
  • Touring Road Glide Custom CVO Anniversary FLTRXSE2 : 2013
  • Touring Road Glide Custom CVO FLTRXSE : 2012
  • Touring Road Glide Custom CVO FLTRXSE2 : 2013
  • Touring Road Glide Custom FLTRX : 2010–2013
  • Touring Road Glide CVO FLTRSE3 : 2009
  • Touring Road Glide EFI CVO FLTRSEI : 2000
  • Touring Road Glide EFI CVO FLTRSEI2 : 2001
  • Touring Road Glide EFI FLTRI : 1998–2006
  • Touring Road Glide FLTR : 1998–2003, 2007–2009
  • Touring Road Glide Ultra CVO FLTRUSE : 2011
  • Touring Road Glide Ultra FLTRU : 2011–2013
  • Touring Road King Classic EFI FLHRCI : 1998–2006
  • Touring Road King Classic FLHRC : 2007–2013
  • Touring Road King Custom EFI FLHRSI : 2004–2006
  • Touring Road King Custom FLHRS : 2004–2007
  • Touring Road King CVO Anniversary FLHRSE5 : 2013
  • Touring Road King CVO FLHRSE4 : 2008
  • Touring Road King CVO FLHRSE5 : 2013
  • Touring Road King EFI FLHRI : 1996–2006
  • Touring Road King FLHR : 1994–2013
  • Touring Road King FLHR Anniversary : 2013
  • Touring Road King Police CA EFI FLHPEI : 2005–2006
  • Touring Road King Police CA FLHPE : 2007–2011
  • Touring Road King Police EFI FLHPI : 2002, 2005–2006
  • Touring Road King Police FLHP : 1997–2000, 2007–2013
  • Touring Road King Police FLHPI : 1996, 2003
  • Touring Tour Glide Classic Anniversary FLTC : 1988
  • Touring Tour Glide Classic FLTC : 1984–1992
  • Touring Tour Glide FLT : 1985–1986
  • Touring Tour Glide Ultra Classic EFI FLTCUI : 1996
  • Touring Tour Glide Ultra Classic FLTCU : 1989–1995
  • Trike Freewheeler FLRT : 2015–2020
  • Wide Glide FXWG : 1980–1986
Customer Reviews

Customer Reviews for KST Kustoms 1-1/4" Polished 12" Mayhem Handlebar

Overall Rating

4 out of 5 stars (based on 10 reviews)

5 stars (7)

4 stars (0)

3 stars (0)

2 stars (2)

1 star (0)

0 stars (1)

markmarket on 7/8/2019

The handlebars came out great

LITO on 5/5/2019

5-Star

robwick2011 on 4/29/2019

Like the design, however the quality is not what I expected. The shipping was as expected, the bars where wrapped well. So I left the packing on the bars to protect them while I fed the wiring through,( that was a mistake). After I wired the bars and removed the wrapping I found that the bars had scratches, they also had areas that have grinding marks that were not removed before polishing. The inside of the bars had welding wire that had passed through the joint that was not removed. Had to remove before putting the wiring through. Took a lot of time and patients to wire but can be done. Not sure how to rate over all, Do not believe they have any quality control to check final product. I new they would be hard to wire, And my fault for not unwrapping them before installing wiring. Or I would have sent them back. Can't send bars back if they have been installed. Will ride with them this season, may replace this winter.

JEFF on 4/13/2019

The outside finish is decent however the inside of the bars were absolutely disgusting, so much slag and debri that it took a couple hrs to clean them enough to safely run my wires through Not worth the money....

HS2701 on 3/11/2019

I do not recommend buying these handlebars. On arrival I opened the box and immediately found marks on the chrome. It looks as if they mounted it in a jig. I’m assuming because it was on both sides at the exact same location. The cut outs for the wiring was extremely sharp with huge amounts of slag inside the bars where each of the openings was cut out. I was not happy at all that half the welds was ground down but not the bottom half underneath of the bar at each joint. I then decided for my own sake to run a bore scope down each tube. On the first joint I found mig wire hanging from a weld joint inside the bar. The cost compared to the quality of these are outrageous. I sent them back and bought a different brand. If your more into looks than quality then I guess these bars are for you. If your looking for both quality and looks I suggest buying a different brand. On a side note when I called JP cycles to let them know about the issue they was extremely helpful and apologetic. They refunded my order quickly and sent my new set I wanted out right away. I will definitely keep doing business with them.

DesertsStormVet on 2/16/2019

These Bars are of a Quality that is unmatched. The welds are perfect. The polishing is nicer then chrome. Again another great product sold on J&P Cycles. KST Kustoms makes products that can be trusted. Highly recommend J&P Cycles and KST Kustoms Bars.

kmangum on 10/6/2015

Great bars...looks great on my 2012 RK

mwillard74 on 8/5/2015

Bars are very comfortable looks nice and easy to install. uses all factory controls

Claudiov on 6/6/2014

These bars are great, exactly what I wanted. I put them on my 2012 Road Glide CVO and didn't have to extend any wires or cables (all stock). Bars have a great finish, not to bad to wire, just take your time and you won't regret it!!!!

holloway9 on 3/11/2014

the bars are awesome! they are a eye catcher. well made bars!

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