Fulcrum RM16-TA12135 Rear Axle Conversion – HH12 (12x135 mm)

Fulcrum RM16-TA12135 Hub Adapter

Rear Axle Conversion Adapter – HH12 (12x135 mm)

Product Description

The Fulcrum RM16-TA12135 is a genuine OEM rear hub adapter designed to configure compatible Fulcrum wheelsets to a 12 mm thru-axle (HH12) with 135 mm spacing.

Manufactured to Fulcrum’s exact tolerances, this adapter kit ensures precise hub alignment, optimal bearing preload, and reliable drivetrain performance. It is primarily used in service applications to adapt hub spacing or as a base component in axle standard conversions.

The kit consists of two precision components (A + B) that together define the 135 mm hub width in a thru-axle configuration.

Key Functions

1. Hub Spacing Conversion

• Converts compatible Fulcrum hubs from:
• 12x142 mm → 12x135 mm thru-axle
• Uses RM16-TA12135 in place of the 142 mm version (RM16-TA12142)

2. Base for Quick Release Conversion

When combined with the optional Fulcrum KITFCRAQR, this adapter enables:

• 12x135 mm thru-axle → 10x135 mm quick release conversion

⚠️ Important: RM16-TA12135 alone does NOT convert to quick release.
The QR conversion requires the additional KITFCRAQR. 

Specifications

• Product Code: RM16-TA12135
• Type: Rear hub adapter kit (A + B components)
• Axle Standard: HH12 (12 mm thru-axle)
• Spacing (OLD): 135 mm
• Material: Fulcrum OEM alloy construction
• Installation: Direct replacement / press-fit compatible

Compatibility

Road Rim Brake Wheels

• Racing 3
• Racing 5 LG
• Racing 7 LG
• Racing Sport
• Racing Zero (all variants)
• Racing Zero Carbon / Competizione / Nite
• Racing Quattro Carbon / LG
• Red Wind / Red Wind XLR
• Speed 40 / 55 / 360 series

Road Disc Brake Wheels (135 mm platform)

• Racing 5 DB / 500 DB
• Racing 6 DB / 600 DB
• Racing 7 DB / 700 DB
• Racing Quattro Carbon DB

Off-Road / MTB (shared hub platform)

• Red Zone 5 / 500
• Red Zone 7 / 700
• Red Fire 5 / 500
• Red Passion / Red Passion 3

Compatibility Summary Table

Important Notes

• Not compatible with 142 mm setups unless replacing the existing adapter
• Always verify hub generation and axle standard before installation
• Installation should be performed by a qualified mechanic

Summary

The Fulcrum RM16-TA12135 is a critical service component for adapting hub spacing to 12x135 mm and enabling further conversion to quick release systems when paired with the appropriate kit. Its broad compatibility across Fulcrum wheel families makes it an essential spare for workshops and riders maintaining mixed axle standards.

DELIVERY

Delivery to mainland UK addresses are free for orders over £40. Except when you choose delivery to a third party (Click and Collect) there is a charge of £5.95 to cover some of the additional cost the couriers charge for this service. If you choose to collect from Fawkes warehouse there is no shipping charge.

There will an additional charge for deliveries to Highlands and Islands. 

RETURNS TO FAWKES

Whether it’s a jersey that doesn’t fit, or the colour is not quite right, sometimes you’ll need to return items to us.

If an item is 'as new' and has not been used or fitted in any way, you can return it to us by post within 90 days of delivery for a refund. Please ensure that the goods are returned in their original packaging and are in an unused condition.

Please click HERE to print and then complete the returns form and include it inside your parcel.

If you wish you can use our Royal Mail Returns service please follow the instructions on the link below to return your parcel to us.

Royal Mail Returns Service

Please pack the item carefully to avoid damaged during shipping.

Customers need to pay the cost of return delivery unless the item is faulty and this will be deducted from your refund, currently £3.95.

If your have a large item e.g. Child seat, Bike, trailer etc. please contact our customer service team at Guy@fawkes-cycles.co.uk to arrange the best way to return your item, the cost will be deducted from your refund.

You will not receive a refund for the retail value of any free or promotional items you are sent, and you will be charged if they are not returned.

UNWANTED ITEMS

If you change your mind on your purchase, you have a full 90 days to return it for a refund. All Goods must be unused, in a saleable condition and in their original packaging with all labels still attached.

Please pack the item carefully to avoid damaged during shipping.

There are some exclusions to our 90 day returns policy, which are detailed below:

Nutritional products or those with a best before date must be returned within 28 days*

Any customised items such as wheel builds cannot be returned*

GPS systems such as sports watches or cycle computers can only be returned if unregistered*

For hygiene reasons, any intimate garments such as facemasks, underwear and swimsuits can only be returned if the items are faulty.

*Unless faulty

If you wish to return your item for a refund, please follow the returns procedure above.

We try our best to process all refunds within 14 working days. We'll refund your item via your original payment method.

You will not receive a refund for the retail value of any free items you are sent, and Fawkes may charge you for this item if you fail to return it

FAULTY ITEMS

If you feel that your purchase has developed a fault, then please contact us with photographs of the issue before returning any goods - we may be able to solve your problem without you incurring any further inconvenience.

If you find a fault with your item, send it back to us and we'll take a look at it as soon as we can. Items sent back to us will undergo an inspection and it may be necessary to send the item away to the manufacturer to confirm the fault. If we confirm a manufacturing fault, we'll happily replace or refund it.

Please pack the item carefully to avoid damaged during shipping. 

Faulty items should be returned within a reasonable time and in a clean and dry condition. PLEASE NOTE, WE WILL NOT PROCESS DIRTY ITEMS.

Please enclose all your details and a covering note explaining the fault and any other useful details.

We'll try to get back to you within 14 working days of receipt of your parcel, although during busy periods this may take slightly longer.

Your statutory rights are not affected.

We reserve the right to recharge return carriage on items where no fault is identified.

Customer Service Email: Guy@Fawkes-Cycles.co.uk

Please contact us for our Payment & Security policy.