haro thread slope dirt jumper bike

Welcome to our detailed review of the Haro Thread Slope, where we unravel the intricacies of this high-performance mountain bike. If you're a cycling enthusiast, particularly inclined towards dirt jumping or slopestyle riding, this review is tailored for you.

We understand that choosing the right bike can be overwhelming with the plethora of options available. That's why we've taken a deep dive into the Haro Thread Slope, analyzing its design, build, components, and overall performance.

Whether you're pondering a purchase or just passionate about bikes, this review will provide valuable insights, helping you understand if the Haro Thread Slope aligns with your riding ambitions and lifestyle. Let's get started!

Review of: Haro Thread Slope

Uses: Slopestyle Bike

We Like

positive points  Durable aluminum frame

positive points  High-quality Manitou suspension

positive points  Responsive FSA Gradient

positive points  TRP HY/RD-C disc brakes

positive points  Kenda Small Block 8 tires

We Don't Like

negative points  Premium price point

negative points  Limited color options

negative points  One frame size only

negative points  Heavy for some riders

negative points  No stock pedal upgrades

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side on grey haro thread slope bike

photo credit  Photo by @jaretbrantley

Haro History and Information

haro bikes logo

photo credit  Photo by harobikes.com

Haro Bikes, founded in the 1980s, embodies the spirit of freedom and innovation in cycling, particularly in BMX and freestyle. Bob Haro, a pioneer in the sport, established Haro Bikes during a time when cycling was undergoing significant changes, especially in terms of stunts and performance.

The company quickly became known for its innovative designs, notably the iconic freestyler frame. Today, Haro has diversified its product range, offering mountain bikes, road bikes, gravel bikes, e-bikes, and kids' bikes, while maintaining its roots in BMX.

Based in Vista, California, near the old Carlsbad speedway, Haro Bikes continues to influence the cycling world with its commitment to quality and the cycling experience.

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haro thread slopestyle bike

Haro Thread Slope Review

  • Durable aluminum frame
  • High-quality Manitou suspension
  • Responsive FSA Gradient
  • TRP HY/RD-C disc brakes
  • Kenda Small Block 8 tires
  • Premium price point
  • Limited color options
  • One frame size only
  • Heavy for some riders
  • No stock pedal upgrades
$2,750 from Danscomp

photo credit  Photo by @jaretbrantley

  • Quality
  • Durability
  • Weight
  • Price
  • Overall

The Haro Thread Slope, introduced in 2019, is Haro Bikes' top-tier model in its Freestyle MTB range, boasting an Aluminum frame designed for dirt jumping and slopestyle riding. It's a bike that merges lightness with rigidity, precision, and a capacity for 'shredding'.

Design and Build

Sporting a full X6 aluminum Thread Slope dual suspension frame, the bike presents an internal head tube, a 68mm threaded BSA, and an ISCG mount. Its Navajo Red color adds to its striking appearance. The Manitou Circus Expert fork offers 100mm of travel, ensuring a smooth ride and the RockShox RS Deluxe R rear shock adds to the bike's overall comfort and performance.

Components and Performance

haro thread slope components

photo credit  Photo by @jaretbrantley

The bike features an FSA Gradient Modular 1X Direct Mount crankset with a 30T Megatooth forged aluminum chainring, paired with a 14T Chromoly cog, striking a balance between power and speed.

The KMC Z1 HX chain ensures durability and smooth transmission. It's equipped with TRP HY/RD-C 160mm disc brakes, offering reliable stopping power.

Handling and Comfort

wheels on the haro thread slope

photo credit  Photo by @jaretbrantley

The FSA Gradient riser handlebar and stem contribute to the bike's responsive handling and comfort. The Haro Pivotal saddle with a hollow bolt and Spank Ind. Spoon aluminum double-wall rims add to the bike's functionality and aesthetic appeal.

Additionally, the Haro SD Nylon pedals with sealed bearings enhance the overall riding experience.

Tires and Wheels

The bike rolls on Kenda Small Block 8 tires, sized at 26x2.35" front and 26"x2.10" rear, providing a good balance between grip and speed. The Pivit sealed bearing hubs add to the bike's overall durability.

Haro Thread Slope is a well-rounded, high-performance bike that excels in both dirt jumping and slopestyle riding. It combines a robust frame with high-quality components, ensuring both durability and performance.


  • Frame: Haro Full X6 Aluminum Thread Slope
  • Fork: Manitou Circus Expert | 100mm travel
  • Frame Shock: RockShox RS Deluxe R
  • Colors: Navajo Red
  • Cranks: FSA Gradient Modular 1X Direct Mount | 170mm
  • Pedals: Haro SD Nylon
  • Chain: KMC Z1 HX
  • Bottom Bracket: FSA BB-392-EVO
  • Freewheel/Cassette: 14T Chromoly
  • Tires: Kenda Small Block 8
  • Wheels/Rims: Spank Ind. Spoon aluminum double-wall, 32h
  • Hubs: Pivit sealed bearing aluminum disc
  • Brakes: TRP HY/RD-C 160mm
  • Brake Levers: Odyssey Trigger for Single Gyro upper cable
  • Grips/Tape: Velo Lock On
  • Handlebar: FSA Gradient Riser | 25mm Rise | 9 Deg. Backsweep | 6 deg. Upsweep
  • Stem: FSA Gradient 1-1/8" | 45mm Ext.
  • Headset: FSA # 51 | 1-1/8"-1.5" Aluminum
  • Saddle: Haro Pivotal w/ hollow bolt
  • Seat Post: Pivotal aluminum | 31.6mm
  • Seat Clamp: Pivit aluminum 35mm
  • Extras: Haro OS Teflon Bearing Rotor
pedals and drivetrain of the haro thread slope suspension forks of the haro thread slope

photo credit  Photo by @jaretbrantley


  • Seat Tube (C-T): 320mm (12.6")
  • Top Tube (Effective): 574mm (22.6")
  • Head Tube Angle: 69°
  • Seat Tube Angle: 67°
  • Chainstay Length: 390mm (15.4")
  • BB Drop: 6mm (0.2")
  • Wheelbase: 1058mm (41.7")
  • Head Tube Length: 115mm (4.5")
  • Standover: 710mm (28")
  • Stack Height: 548mm (21.6")
  • Reach: 420mm (16.5")
  • Fork Height: 478mm (18.8")
  • Fork Offset: 41mm (1.6")
  • Stem Length: 45mm
  • Bar Width: 760mm
  • Crank Length: 170mm

Pricing and Availability

Priced at $2,699.99, the Haro Thread Slope is a premium offering that justifies its cost with high-quality components and a robust build.

As time of this review, not many online retailers have the Thread Slope in stock. It may be restocked soon but your best option is to look on the second-hand websites like eBay or PinkBike.

Competing Products

canyon slopestyle bike

photo credit  Photo by @slopestyleworldwide

As you will see in our post on the best dirt jumping bikes, there are a few great alternatives to this bike. Personally, I love the Canyon Stitched 720 slopestyle bike.

Canyon offers two models of this bike. A hardtail version that will be suited to most everyday riders. The 720 option, however, is a full suspension, slopestyle option that can deal with almost anything you throw at it.

Haro Bikes Warranty

Haro Bikes provides a solid warranty policy that reflects its commitment to quality and customer satisfaction. Their warranty includes limited lifetime coverage for the original owner of the frame and fork, addressing issues related to material or workmanship.

This lifetime warranty, however, does not extend to paint, finish, and other attached parts like drivetrain components, which are covered under a separate one-year warranty. It's important to note that the warranty is valid only if the bicycle is properly maintained and used under normal conditions.

The warranty does not cover damages from accidents, abuse, improper assembly, or use outside of intended purposes. Haro's warranty is specific to manufacturing defects and does not include a "No Fault" coverage for rider-related damages or carelessness. In cases of invalid warranty claims, Haro offers a replacement frame at a reduced price, conditional on assembly by an authorized service provider.

Haro recommends regular inspections and servicing by authorized providers for optimal performance and longevity. This policy emphasizes Haro's focus on quality while clearly defining the scope and limitations of the warranty coverage.

2021 Haro Thread SLOPE - Dirt Jumper Review