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Progressive Fork Springs For Harley Sportster / Street 2004-2018

Item: P248053

With progressively wound springs ideal for little bumps and big molar shakers, these are an inexpensive way to radically improve your comfort. Read More

$87.30
$97.00
Save $9.70 (10%)

This product is vehicle specific. Please to ensure fitment.

Learn More

Product Details

Progressive Suspension Fork Springs For Harley Sportster / Street

The 'Original' progressive-rate fork springs soak up small road bumps, yet are firm enough to absorb the molar-rattlers. Spring rates have been chosen to reduce front end "dive" during braking, yet still provide excellent ride comfort. A progressive-rate spring has the advantage of a resistance to compression that rises as the spring is being compressed - it gets tougher to compress as it is compressed. The benefit of this is that the spring can be soft enough at the start of the travel to offer a "plush" ride, yet be firm enough at the end of the travel to soak up the big bumps.

Features:

  • Progressive spring rate
  • High-quality chrome-silicon wire
  • Spacer required included
  • Precision wound
  • Made in USA
Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Stock Length RevZilla Item #902991 MFR. Product #11-1527 AvailabilityIn Stock: Ships next business day
Please review this product's fitment notes & exceptions prior to purchase: Add to Cart

This product is vehicle specific. Please to ensure fitment.

Fitment Notes & Exceptions
  • Fits 2015-Up Street and 2004-2015 Sportster only - not compatible with 2016-Up Sportster
  • Changing ride height can potentially change many carefully-engineered attributes of your bike, including trail and mechanical trail
  • A change in ride height at one end of the vehicle usually will require a change at the other end
  • Heavy Duty shocks are recommended for bikes operated at or near the OEM maximum load rating over 50% of the time
  • Prior to purchasing springs that are different than your OEM length, please verify that wheel and suspension travel can be altered without causing clearance issues - common interference spots include triple trees, fenders, frame, and of course, the ground
Harley Davidson
Sportster Custom XL1200C 2004-2015
Sportster Custom XL883C 2004-2009
Sportster Forty-Eight XL1200X 2010-2015
Sportster Iron XL883N 2009-2015
Sportster Low/SuperLow XL883L 2005-2015
Sportster Low XL1200L 2006-2011
Sportster Nightster XL1200N 2007-2012
Sportster Roadster XL1200R 2004, 2005, 2006, 2007, 2008
Sportster Roadster XL883R 2004-2012
Sportster Seventy-Two XL1200V 2012, 2013, 2014, 2015
Sportster SuperLow XL1200T 2014, 2015
Sportster XL883 2004-2009
Street 500 XG500 2015, 2016, 2017, 2018
Street 750 XG750 2015, 2016, 2017, 2018
This item is also available for 82 different models
Harley Davidson
Dyna Convertible FXDS 1994-2000
Dyna Fat Bob FXDF 2008-2017
Dyna Glide Custom FXDC 1992
Dyna Glide Daytona FXDB-D 1992
Dyna Glide Sturgis FXDB-S 1991
Dyna Low Rider FXDL/I 2006-2017
Dyna Low Rider FXDL/I 1993-2005
Dyna Street Bob FXDB/I 2006-2017
Dyna Super Glide Custom FXDC/I 2006-2014
Dyna Super Glide Custom FXDC/I 2005
Dyna Super Glide FXD/I 1995-2005
Dyna Super Glide FXD/I 2006-2010
Dyna Super Glide Sport FXDX 2000-2005
Dyna Super Glide Sport Touring FXDXT 2001-2003
Dyna Wide Glide FXDWG/I 1993-2005
Dyna Wide Glide FXDWG/I 2007-2017
Electra Glide Classic FLHTC/I 1984-2013
Electra Glide Classic FLHTC/I 2002-2005
Electra Glide Standard FLHT/I 1984-2009
Electra Glide Standard FLHT/I 2002-2005
Electra Glide Ultra Classic FLHTCU/I 1987-2013
Electra Glide Ultra Classic FLHTCU/I 2002-2005
Electra Glide Ultra Classic FLHTCU/I 2014-2016
Electra Glide Ultra Limited FLHTK 2010-2013
Electra Glide Ultra Limited FLHTK 2014-2016
Low Glide/Low Rider FXRS 1988-1993
Low Rider Custom FXLR 1987-1994
Night Rod Special VRSCDX 2012-2017
Night Rod VRSCD 2006-2008
Road Glide Custom FLTRX 2010-2013
Road Glide FLTR/I 1998-2009
Road Glide FLTR/I 2002-2005
Road Glide FLTRX 2015-2016
Road Glide Special FLTRXS 2015-2016
Road Glide Ultra FLTRU 2011-2013
Road King Classic FLHRC/I 1998-2013
Road King Custom FLHRS/I 2004-2007
Road King FLHR/I 1994-2013
Road King FLHR/I 2014-2016
Softail Breakout FXSB 2013-2017
Softail Custom FXSTC/I 1986-2010
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 1993-2017
Softail Deuce FXSTD/I 1999-2007
Softail Fat Boy FLSTF/I 1990-2017
Softail Fat Boy Lo FLSTFB 2009-2016
Softail Fat Boy S FLSTFBS 2016-2017
Softail Heritage Classic FLSTC/I 1986-2017
Softail Heritage FLST/I 1986-2006
Softail Night Train FXSTB/I 1999-2009
Softail Rocker C FXCWC 2008-2011
Softail Rocker FXCW 2008-2011
Softail Slim FLS 2012-2017
Softail Slim S FLSS 2016-2017
Softail Standard FXST/I 1984-2012
Sportster Custom XL1200C 1996-2003
Sportster Custom XL1200C 2016-2018
Sportster Custom XL883C 1998-2003
Sportster Deluxe XLH883DLX 1989-1992
Sportster Forty-Eight Special XL1200XS 2018
Sportster Forty-Eight XL1200X 2016-2018
Sportster Hugger XLH883HUG 1992-2003
Sportster Iron XL1200NS 2018
Sportster Iron XL883N 2016-2018
Sportster Low/SuperLow XL883L 2016-2018
Sportster Roadster XL883R 2002-2003
Sportster Seventy-Two XL1200V 2016
Sportster Sport XL1200S 1996-2003
Sportster SuperLow XL1200T 2016-2017
Sportster XLH1100 1988
Sportster XLH1200 1988-2003
Sportster XLH883 1988-1993
Sportster XLH883 1994-2003
Street Glide FLHX/I 2006-2013
Street Glide FLHX/I 2014-2016
Street Glide Special FLHXS 2014-2016
Super Glide FXR 1994
Tour Glide Classic FLTC/I 1984-1991
Tour Glide FLT 1984-1991
Tour Glide Ultra Classic FLTCU/I 1989-1995
V-Rod Muscle VRSCF 2009-2017
V-Rod VRSCA 2002-2006
V-Rod VRSCB 2004-2005

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Product Description
Part Numbers
Fitment
Shipping & Returns
Product Description
With progressively wound springs ideal for little bumps and big molar shakers, these are an inexpensive way to radically improve your comfort. Read More
Part Numbers
Tap To View Part Numbers
Fitment
Tap To View Fitment Details
Shipping & Returns
Tap To View Shipping & Returns Details

Reviews & Questions

4.9 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
8
1
0
0
0
Bang For The Buck
4.9 / 5
Features
5.0 / 5
Style
4.8 / 5
Ease Of Install
4.4 / 5
Fit & Finish
5.0 / 5
Durability
5.0 / 5
Bang For The Buck
5 / 5
Great Springs
Just put these in my Iron 883. Wow! What a difference. The front feels like a sportbike. The stock springs looked so weak compared to these. No more bottoming out :) It also lifted my front end because there is why less sag. I lifted the rear with 12" 412s as well and now my bike can lean much more than before! Way better ride as well.
August 1, 2014
Ride:
2013 Harley Davidson Iron XL883N
Bang For The Buck
5 / 5
Features
5 / 5
Ease Of Install
4 / 5
I installed these in a sportster 72 which was lacking af with the stock springs/fluid. The front end used to dive horribly under braking. I installed these and switched to 20wt fork oil and wow, what a difference. Taunt without being stiff. Stats planted much better under hard acceleration and braking. Great results for less than $100 in parts.
The install wasn't bad. Jack up the bike, drain the fluid, remove the 3/4" riser bolts so the bars are out of the way, remove the fork tube caps, pull out the old springs and spacers, drop in new springs, refill fork oil, reinstall fork caps and bar risers.
February 23, 2017
Purchased
1 year ago
Bang For The Buck
4 / 5
Cheap upgrade
Probably the best bang for a stock front end. Don't expect sport bike handling, although it is a good improvement over stock while riding aggressively.
December 7, 2015
Bang For The Buck
5 / 5
Nightster Upgrade
Upgraded front and rear with progressive suspension and I couldn't be happier. Better handling, smoother, built for adventure and comfort. yeah buddy
August 3, 2015
Purchased
over 2 years ago
Ride:
2007 Harley Davidson Sportster Nightster XL1200N
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Street 750
Gets rid of the brake dive and rides smooth on potholes , small and big bumps.
February 14, 2017
Purchased
1 year ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
4 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Totally changes the ride
100% difference in ride quality. .Night and day. Installed with Speed Merchant preloaders...perfect...
November 24, 2017
Purchased
9 months ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
No more fork dive!
My 2015 HD Iron fork springs were way too soft. I'd fork dive with minimal front brake. These are awesome and they go in with minimal pre-load. The factory springs are under a ton of pre-load with metal spacer sleeves so be careful when you take off the fork cap! These come with washers and plastic spacer sleeves. I ended up cutting one of the plastic spacers in half and it fit perfect as per instructions. Even with aggressive front braking there is minimal fork dive. Love these springs!
August 15, 2017
Purchased
9 months ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
4 / 5
Ease Of Install
4 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Great springs!
I installed these on my 05 Sportster. Finally I don't nosedive when I hit the front brake!
July 4, 2017
Purchased
11 months ago
Bang For The Buck
5 / 5
100% better than stock
Installed these with RSD preload adjusters, couldn't ask for a better ride. No more broken spine over bumps!
September 7, 2015
Purchased
over 2 years ago
Ride:
2013 Harley Davidson Sportster Low/SuperLow XL883L
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 16 questions Browse 16 questions and 24 answers
Why did you choose this?
RevZilla Store
Good reviews on these fork springs.
Lambert N on Jun 10, 2017
Looking for a better ride, less dive, and more control around the bends
Patrick C on May 17, 2017
Good reviews on these fork springs.
Lambert N on Jun 10, 2017
Through all the research I did I found these the best for the price and reiews
Tyler S on Jun 1, 2017
Looking for a better ride, less dive, and more control around the bends
Patrick C on May 17, 2017
Brand reputation.. have owned other bikes that have had or I've added Progressive fork springs.
Forrest O on Apr 17, 2017
I also purchased the 412's for the rear. I wanted these as a complement and to improve the ride comfort of my Iron 883.
William M on Feb 13, 2017
I needed to replace the fork springs as I was suss that they were cut and it bottoms out was to easy.
Checked a few online shops for that style cleaner and they were way to expensive.
Stephen J on Dec 9, 2016
They are the leader in the suspension field
David G on Nov 23, 2016
Progressive suggested these Fork Springs as a good replacement.
Mark M on Jul 27, 2016
Most recomended, they work great, easy install
David P on Jun 29, 2016
I have used progressive springs before and they do make a lot of difference to your ride
stephen c on May 25, 2016
installed Progressive 430 in back thought this would be a good balance
William F on Mar 23, 2016
big improvement to my sportster suspension
matt t on Dec 27, 2015
These were recommended by a professional moto-x rider to me.
WIlliam M on Jul 20, 2014
Through all the research I did I found these the best for the price and reiews
Tyler S on Jun 1, 2017
Brand reputation.. have owned other bikes that have had or I've added Progressive fork springs.
Forrest O on Apr 17, 2017
Can u fit 02 fork springs on 05 bike?
A shopper on May 9, 2017
what is the differences between 11-1527 and 11-1552 ?
Arun C on Apr 6, 2017
BEST ANSWER: another question answered by the manufacturer
22 Customer Reviews
22 5/5
Read All Reviews
15 Questions & 11 Answers
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