RAM® Motorcycle Brake/Clutch Reservoir Ball Base

Part#: RAM-B-309-1U
UPC: 793442130915
$18.99

Overview

The RAM-B-309-1U attaches to your motorcycle's handlebar clutch/brake clamp and features one B size 1" rubber ball. The base fits the control clamps on your motorcycle with 40mm x 6mm stainless steel hardware, provided in the kit. To see if the RAM-B-309-1U base is compatible with your motorcycle, check the hole spacing of the base against your clutch/brake reservoir. The hole centers have a minimum width of 0.94" and a maximum of 1.58".

Features

  • Connects to your handlebar clutch/brake clamp with provided 40mm x 6mm stainless steel hardware
  • Compatible with any B size RAM® Mounts double socket arm; ball and socket technology allows for near-infinite adjustability
  • Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty

hardware included:

(2) M6 x 55mm Hex Bolts
(2) #1/4-20 x 2" Hex Bolts
(2) 1/4"-20 x 2.5" Hex Bolts
(2) 1/2" Spacers
(2) 1/4" Split Lock Washers

ball size:

B Size (1")

weight capacity:

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb

materials:

Marine-grade aluminum

packaging type:

Poly Bag

Weight:

0.33 lb

Return Policy:

All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.

QUESTIONS & ANSWERS

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  • Will this work with the 2025 Honda CBR1000RR? I know real estate is tight around this area on the bike.

    This brake/clutch reservoir mount is compatible with 2025 Honda CBR1000RR

  • will this fit 2014 Ultra Limited clutch side reservoir ?

    The RAM-B-309-1U is not compatible with the 2014 Harley Davidson Ultra Limited Series.

  • Will this fit the CFmoto 450ss front brake or clutch?

    This is a universal motorcycle base, not for specific motorcycles. To see if this base is compatible with your motorcycle, check the hole spacing of the base against your clutch/brake reservoir. The hole centers have a minimum width of 0.94" and a maximum of 1.58".

  • Will this fit the front brake side of a 2022 Harley Road Glide Limited?

    This made to accommodate hole spacing between .94" and 1.58" apart.

  • Will this fit a 2019 Harley Davidson Street Glide?

    Yes, the RAM-B-309-1U is compatible with a 2019 Harley Davidson Street Glide.

  • Will this fit a Goldwing?

    Yes this base should fit most if not all Goldwing models. To verify, here is a link to a drawing file of the base casting where you can verify the size of the base and compatible hole spacing.

  • Is the RAM® Motorcycle Brake/Clutch Reservoir Ball Base a 1-inch ball?

    Yes this is a 1" B-size Ball.

RAM® Motorcycle Brake/Clutch Reservoir Ball Base
$18.99

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size — this product 1" ball
  • C Size 1.5" ball
  • D Size 2.25" ball
  • E Size 3.38" ball

Every RAM® mount is built around a rubber ball and socket system. The ball size sets how much weight the mount can carry. Match it to your device for smooth adjustment with a rock-solid hold.

RAM Mounts ball size specifications and typical uses
Size Ball Diameter Max Load* Best For
A0.56" (14.3 mm)0.5 lbAction cameras and other ultra-light devices
B — this product1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D2.25" (57.2 mm)6 lbsRugged tablets, laptops, and heavy equipment
E3.38" (85.9 mm)15 lbsLarge displays and demanding aviation or industrial use

*Approximate capacity for a standard ball with a mid-length arm. Shorter arms and steel-reinforced posts increase real-world capacity.

Reading part numbers

The letter after RAM tells you the ball size: RAM-B-166 uses a 1" B ball, while RAM-D-201 uses a 2.25" D ball. C size parts are the exception and carry no letter, so RAM-201U is a C size arm.

Add-on & Accessories

B Size Double Socket Arms
See All
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