Nitto M137AA 31.8x520mm Black
Description
The Nitto M137 Dirt Drop Handlebar looks similar to the current crop of Gravel bars but with more flare at the drops and with the smooth curves and nice finish you expect from Nitto.
- Reach: 78mm
- Drop: 128mm
- Clamp 31.8
- Heat Treated Aluminium
Made in Japan.
Webshops and Bike shops
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Stock Code:TNHB-HB-E115Stock Code:TNHB-HB-E132Stock Code:TNHB-HB-E133Stock Code:TNHB-HB-E134
800mm wide, 20mm of rise, 9° of backsweep and 5° of upsweep. Built using 7050 Aluminum alloy for strength and long life. 65mm wide clamping area to fit our Direct Mount stem, giving you the most torsional stiffness of any bar/stem combination. 31.8 center section is absolutely straight over a width of 90mm. The long straight section in the middle reduces stress concentrations, especially when using wide Direct Mount stems
Bar is butted and tapered in many steps for optimal fatigue life. Ends of the bar are thickened from 1.4 to 1.6mm to resist damage from impacts and contact with the ground.
Bar is produced by advanced CNC bending to avoid the need for hand grinding. Almost all other bars are manually bent and bends are ground to appear smooth. CNC bending ensures very consistent wall thickness and close tolerances, especially in tapered sections. This keeps weight low and fatigue life high.
Weight 295 g
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Stock Code:RSHBRS-60-09Stock Code:RSHBRS-60-10Stock Code:RSHBRS-60-01Stock Code:RSHBRS-60-04Stock Code:RSHBRS-60-02Stock Code:RSHBRS-60-05Stock Code:RSHBRS-60-03Stock Code:RSHBRS-60-06Stock Code:RSHBRS-60-07Stock Code:RSHBRS-60-08
The gravel bike handlebar that has everything but the kitchen sink.
If you are looking for comfort, control, and convenience the Kitchen Sink Gravel Bike Handlebar is for you. With widths from 41cm up to 53cm, these wide and flared gravel handlebars cover the full range of riders and enhance stability and control while at the same time providing a variety of really comfortable hand positions.
KEY Gravel Handlebar Features:
• 20mm of RISE means less pressure on the hands and a broad range of fit options to accommodate a variety of gravel riding conditions.
• 7° degrees of SWEEP means the bar is positioned where your hands want to be, whether you're on the flats, the hoods or the drops during your most epic gravel ride.
• 25° degrees of FLARE and a Compact Drop means a stable, aerodynamic drop position creates an aero gravel bar setup that is actually comfortable enough to use on your longest gravel ride or your next bikepacking trip.
Why are Your Gravel Handlebars Flared?
Gravel handlebars are designed to seek a balance between the traditional wide flatbars which offer stability and control over rough terrain and the comfort and speed of road bike drop bar position without sacrificing control. Our gravel handlebars are flared in the drops to give the rider a stable and more controllable riding position that is essential for gravel biking terrain. This combination of comfort and control allows you to ride longer, farther and faster and is well suited for everything from short group rides to long distance multi-day bikepacking trips.
Gravel Bar Styles
Choose between two gravel bar styles: LOOP and a more traditional NON-LOOP. The Loop version provides an alternative riding position, a great place to attach gear, and the perfect spot for our new storage solution: the Kitchen Sink Gravel Handlebar Bag. The bag was designed specifically to fit in the loop and allow easy (single hand) access to all your essentials for bikepacking and long gravel rides. In addition, we created a Computer Mount that attaches to the top of the bag to give you a secure and ideally located spot for your Garmin or Wahoo bike computer.
To get even more comfort and performance out of your Kitchen Sink Gravel Bar, add the ergonomic Cruise Control Grip System. The Top Grips provide an incredibly comfortable position at the tops by expanding the bar and giving you a wide area to rest your hands. And the Drop Grips give you an extra comfortable position while in the drops through an ergonomic style grip that helps spread load over your hands so you can stay in your tuck all day.
Top it all off with some of our Really Long Bar Tape which is specifically designed to be long enough to wrap even the widest gravel handlebar. Oh and it's super comfortable with just the right amount of grip.$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP) -
Stock Code:RSHBRS-60-21Stock Code:RSHBRS-60-26Stock Code:RSHBRS-60-22Stock Code:RSHBRS-60-27Stock Code:RSHBRS-60-23Stock Code:RSHBRS-60-28Stock Code:RSHBRS-60-24Stock Code:RSHBRS-60-29Stock Code:RSHBRS-60-25Stock Code:RSHBRS-60-30
The gravel bike handlebar that has everything but the kitchen sink.
If you are looking for comfort, control, and convenience the Kitchen Sink Gravel Bike Handlebar is for you. With widths from 41cm up to 53cm, these new low flare gravel handlebars can aid stability and control but at the same time provide really comfortable hand positions.
KEY Handlebar Features:
• 20mm of rise means less pressure on the hands and a broad range of fit options to accommodate a variety of gravel riding conditions.
• 7° degrees of sweep means the bar is positioned where your hands want to be, whether you're on the flats, the hoods or the drops during your most epic gravel ride.
• Low Flare (10° degrees) and a compact drop are perfect for road and gravel riders who prefer a more traditional road shaped bar.
Why 10 degrees?
Because it's the right balance between classic dropbar shaping and the ergonomic + comfort advantages of flare. A small amount of flare on performance road bike bars is quickly becoming a very popular option for this very reason.
Loop or Non-Loop?
Choose between two gravel bar styles: LOOP and a more traditional NON-LOOP. The Loop version provides an alternative riding position, a great place to attach gear, and the perfect spot for our custom storage solution: the Kitchen Sink Gravel Handlebar Bag. The bag was designed specifically to fit in the loop and allow easy (single hand) access to all your essentials for bikepacking and long gravel rides. In addition, we created a Computer Mount that attaches to the top of the bag to give you a secure and ideally located spot for your Garmin or Wahoo bike computer.
To get even more comfort and performance out of your Kitchen Sink Gravel Bar, add the ergonomic Cruise Control Grip System. The Top Grips provide an incredibly comfortable position at the tops by expanding the bar and giving you a wide area to rest your hands. And the Drop Grips give you an extra comfortable position while in the drops through an ergonomic style grip that helps spread load over your hands so you can stay in your tuck all day.
Top it all off with some of our Really Long Bar Tape which is specifically designed to be long enough to wrap even the widest gravel handlebar. Oh and it's super comfortable with just the right amount of grip.Expected Date:19 June 2026$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP) -
Stock Code:RSHBRS-60-21Stock Code:RSHBRS-60-26Stock Code:RSHBRS-60-22Stock Code:RSHBRS-60-27Stock Code:RSHBRS-60-23Stock Code:RSHBRS-60-28Stock Code:RSHBRS-60-24Stock Code:RSHBRS-60-29Stock Code:RSHBRS-60-25Stock Code:RSHBRS-60-30
The gravel bike handlebar that has everything but the kitchen sink.
If you are looking for comfort, control, and convenience the Kitchen Sink Gravel Bike Handlebar is for you. With widths from 41cm up to 53cm, these new low flare gravel handlebars can aid stability and control but at the same time provide really comfortable hand positions.
KEY Handlebar Features:
• 20mm of rise means less pressure on the hands and a broad range of fit options to accommodate a variety of gravel riding conditions.
• 7° degrees of sweep means the bar is positioned where your hands want to be, whether you're on the flats, the hoods or the drops during your most epic gravel ride.
• Low Flare (10° degrees) and a compact drop are perfect for road and gravel riders who prefer a more traditional road shaped bar.
Why 10 degrees?
Because it's the right balance between classic dropbar shaping and the ergonomic + comfort advantages of flare. A small amount of flare on performance road bike bars is quickly becoming a very popular option for this very reason.
Loop or Non-Loop?
Choose between two gravel bar styles: LOOP and a more traditional NON-LOOP. The Loop version provides an alternative riding position, a great place to attach gear, and the perfect spot for our custom storage solution: the Kitchen Sink Gravel Handlebar Bag. The bag was designed specifically to fit in the loop and allow easy (single hand) access to all your essentials for bikepacking and long gravel rides. In addition, we created a Computer Mount that attaches to the top of the bag to give you a secure and ideally located spot for your Garmin or Wahoo bike computer.
To get even more comfort and performance out of your Kitchen Sink Gravel Bar, add the ergonomic Cruise Control Grip System. The Top Grips provide an incredibly comfortable position at the tops by expanding the bar and giving you a wide area to rest your hands. And the Drop Grips give you an extra comfortable position while in the drops through an ergonomic style grip that helps spread load over your hands so you can stay in your tuck all day.
Top it all off with some of our Really Long Bar Tape which is specifically designed to be long enough to wrap even the widest gravel handlebar. Oh and it's super comfortable with just the right amount of grip.Expected Date:19 June 2026$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP)$199.00 (RRP)$255.00 (RRP) -
Stock Code:RSHBRS-64-21Stock Code:RSHBRS-64-26Stock Code:RSHBRS-64-22Stock Code:RSHBRS-64-27Stock Code:RSHBRS-64-23Stock Code:RSHBRS-64-28Stock Code:RSHBRS-64-24Stock Code:RSHBRS-64-29Stock Code:RSHBRS-64-25Stock Code:RSHBRS-64-30
The perfect handlebar for all-day comfort and control, now with road style drops (10 deg flare versus the original 25 deg). The Top Shelf Low Flare Handlebar gives you an ultra-comfortable upright riding position with 50 or 70mm of rise, easy reach to the drops, and extensive bar space to mount anything you need for your on- and off-road adventures.
The patent-pending design features a unique double-bar construction, which allows for easy, secure mounting of bags and accessories. Configure the perfect set-up for anything from an afternoon gravel adventure to an epic multi-day bikepacking trip.
KEY Handlebar Features:
RISE - 50 or 70mm of rise creates a more upright and comfortable riding position without the use of a highly angled stem or excessive headset spacers. This allows riders to achieve a more upright, relaxed fit while maintaining traditional drop-bar bike geometry.
CONTROL - Take advantage of the drops. The higher positioning of the drops provides a comfortable and secure hand position, giving you control to navigate rough terrain and steep descents. This keeps your body weight centered, while reducing neck and back strain.
BACKSWEEP - 7° degrees of backsweep orients the bar where your hands want to be. Whether you're on the flats, the hoods, or the drops, you’re getting an ergonomic position for your most epic gravel rides.
ROAD STYLE FLARE - 10° degrees of flare and a compact drop means a stable, aerodynamic drop position that is actually comfortable enough to use on your longest road or gravel ride.
FULL RANGE OF WIDTHS - 41, 44, 47, 50, and 53cm widths.
STORAGE - the unique double-bar construction provides room for all of your bar-mounted accessories. Mount our custom-fitted Top-Shelf Handlebar Bag securely, without flopping around like they do on a standard handlebar.
Perfect for road, gravel, bikepacking, and commuting.
Why 10 degrees of Flare?
Because it's the right balance between classic dropbar shaping and the ergonomic + comfort advantages of flare. A small amount of flare on performance road bike bars is quickly becoming a very popular option for this very reason.Expected Date:19 June 2026$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)$255.00 (RRP)
