Middlechild Chromoly

MiddleChild Chromoly

 

There’s one in every family. That one that feels excluded from the bunch. If you’re down with that attitude because you like to go your own way, then we’d like to introduce you to the rowdiest member of the RSD family – the MiddleChild.

Some of our bikes are great at getting the job done – real authorities. The 29/27.5+ MiddleChild gets it done, but the only thing on the agenda is playtime. Every detail on this premium-quality handmade steel frame screams “skip work and let’s party!”

  • double-butted, heat-treated 4130 Chromoly steel tubing
  • full CNC-machined custom yoke that’ll take 2.8″ tires (or up to 2.6″ x 29)
  • 64.5 degree head tube and 74 degree seat tube angles paired with 140mm fork –  that aggressive geometry for both climbing and sending choice descent lines
  • boost spacing and short chainstays (adjustable from 415mm – 430mm) for super stability and loads of confidence in the rough stuff
  • Choose from either Duroc 40 27.5+ wheels with Nobby Nic 27.5×2.8 Addix SpeedGrip tires or Duroc 35 29in wheels with Maxxis Minion DHF 2.5 Front and Aggressor 2.5 Rear

The MiddleChild is a purely new-school ‘Enduro’ hardtail…

…that will never get left behind.

27.5+ SX Build

  • Frame: 27.5+/29 Cr-Mo 4130 Double Butted and Heat Treated
  • Fork: Rockshox Recon RL 27.5+/29 140mm 51mm
  • Headset: Cane Creek ZS-44
  • Handle Bar: Race Face 35mm Chester 780mm
  • Stem: Race Face 35mm Ride 50mm
  • Grips: Ergon GE10 Black
  • Front Wheel: Sun Ringle Duroc 27.5x40mm Front 15x110mm Boost
  • Rear Wheel: Sun Ringle Duroc 27.5x40mm Rear 12x148mm Boost
  • Crank: SRAM SX Eagle 175mm DM
  • Chain Ring: SRAM SX 30T Ring
  • BB: SRAM DUB 73mm BSA
  • Chain: SRAM NX Eagle 12spd
  • Cassette: SRAM SX Eagle PG-1210 10-51T 12spd
  • Rear Shifter: SRAM SX Eagle Trigger 12spd
  • Rear Derailleur: SRAM SX Eagle Long Cage 12spd
  • Brakes: SRAM Level
  • Rotors: SRAM Centerline 180mm Rounded
  • Saddle: WTB Volt Comp 142mm
  • Seat Post: Race Face Ride / KS LEV Dropper (S 125mm, M & L 150mm, XL 175mm) with SouthPaw Lever
  • Rear Axle: SRAM 180mm Rear Maxle Ultimate 12x148mm
  • Tires: Schwalbe Nobby Nic 27.5 x 2.8 Addix Evolution Speedgrip

Frame Weight with Sliding Inserts and Hardware
(M): 6 Lbs 10 oz
(L): 6 Lbs 14 oz

Complete Bike Weight 
(M): 30 Lbs 1 oz with Dropper and set-up Tubeless
(M): 29 Lbs 7 oz with Turbine Seat Post and set-up Tubeless

Sizes: Sm, Med, Lrg, Xlrg

Finish: Matte Black, Turquoise & Orange

Pricing: (NEW)
Complete : $2299.00 CAD / $1949.00 USD + Shipping
Complete w/Dropper : $2599.00 CAD / $2199.00 USD + Shipping
Frame Only: $804.00 CAD / $704.00 USD + Shipping

Included with the Frame Only option:
Rear 12x148mm Sliding Drop-out Inserts
SRAM Rear Maxle Ultimate 12x148mm
Seat Post Clamp

 

Prices and Specs are subject to change without notice.

Note: We are unable to accommodate any single component substitution from one build to another, BUT we can accommodate the substitution of an entire build. Pricing will be dependent on the build and/or frame material at RSD’s sole discretion. All prices listed are Minimum Suggested Retail.

29in SX Build

  • Frame: 27.5+/29 Cr-Mo 4130 Double Butted and Heat Treated
  • Fork: Rockshox Recon RL 27.5+/29 140mm 51mm
  • Headset: Cane Creek ZS-44
  • Handle Bar: Race Face 35mm Chester 780mm
  • Stem: Race Face 35mm Ride 50mm
  • Grips: Ergon GE10 Black
  • Front Wheel: Sun Ringle Duroc 29x35mm Front 15x110mm Boost
  • Rear Wheel: Sun Ringle Duroc 29x35mm Rear 12x148mm Boost
  • Crank: SRAM SX Eagle 175mm DM
  • Chain Ring: SRAM SX 30T Ring
  • BB: SRAM DUB 73mm BSA
  • Chain: SRAM NX Eagle 12spd
  • Cassette: SRAM SX Eagle PG-1210 10-51T 12spd
  • Rear Shifter: SRAM SX Eagle Trigger 12spd
  • Rear Derailleur: SRAM SX Eagle Long Cage 12spd
  • Brakes: SRAM Level
  • Rotors: SRAM Centerline 180mm Rounded
  • Saddle: WTB Volt Comp 142mm
  • Seat Post: Race Face Ride / KS LEV Dropper (S 125mm, M & L 150mm, XL 175mm) with SouthPaw Lever
  • Rear Axle: SRAM 180mm Rear Maxle Ultimate 12x148mm
  • Tires: MAXXIS Minion DHF 29×2.5WT 3C/Max Terra/EXO Front and Aggressor 29×2.5WT 3C?Max Terra/EXO Rear

Frame Weight with Sliding Inserts and Hardware
(M): 6 Lbs 10 oz
(L): 6 Lbs 14 oz

Complete Bike Weight 
(M): 30 Lbs 1 oz with Dropper and set-up Tubeless
(M): 29 Lbs 7 oz with Turbine Seat Post and set-up Tubeless

Sizes: Sm, Med, Lrg, Xlrg

Finish: Matte Black, Turquoise & Orange

Pricing: (NEW)
Complete : $2299.00 CAD / $1949.00 USD + Shipping
Complete w/Dropper : $2599.00 CAD / $2199.00 USD + Shipping
Frame Only: $804.00 CAD / $704.00 USD + Shipping

Included with the Frame Only option:
Rear 12x148mm Sliding Drop-out Inserts
SRAM Rear Maxle Ultimate 12x148mm
Seat Post Clamp

 

Prices and Specs are subject to change without notice.

Note: We are unable to accommodate any single component substitution from one build to another, BUT we can accommodate the substitution of an entire build. Pricing will be dependent on the build and/or frame material at RSD’s sole discretion. All prices listed are Minimum Suggested Retail.

27.5+ SLX Build

  • Frame: 27.5+/29 Cr-Mo 4130 Double Butted and Heat Treated
  • Fork: Rockshox Pike Select RC 27.5+/29 140mm 51mm
  • Headset: Cane Creek ZS-44
  • Handle Bar: Race Face 35mm Turbine R 780mm
  • Stem: Race Face 35mm Aeffect R 50mm
  • Grips: Lizard Skin Northshore
  • Front Wheel: Sun Ringle Duroc 27.5x40mm Front 15x110mm Boost
  • Rear Wheel: Sun Ringle Duroc 27.5x40mm Rear 12x148mm Boost
  • Crank: Race Face Turbine Cinch 175mm DM
  • Chain Ring: Race Face 30T Ring NW
  • BB: Race Face 73mm BSA
  • Chain: Shimano 12spd
  • Cassette: Shimano SLX 10-51T 12spd
  • Rear Shifter: Shimano SLX Trigger 12spd
  • Rear Derailleur: Shimano SLX Long Cage 12spd
  • Brakes: Shimano SLX 4 Pistons M7120
  • Rotors: Shimano SLX 180mm
  • Saddle: WTB Volt Comp 142mm
  • Seat Post: 30.9mm Race Face Turbine / KS LEV Dropper (S & M 125mm, L 150mm, XL 175mm) with SouthPaw Lever
  • Rear Axle: SRAM 180mm Rear Maxle Ultimate 12x148mm
  • Tires: Schwalbe Nobby Nic 27.5 x 2.8 Addix Speedgrip

Frame Weight with Sliding Inserts and Hardware
(M): 6 Lbs 10 oz
(L): 6 Lbs 14 oz

Complete Bike Weight 
(M): 30 Lbs 1 oz with Dropper and set-up Tubeless
(M): 29 Lbs 7 oz with Turbine Seat Post and set-up Tubeless

Sizes: Sm, Med, Lrg, Xlrg

Finish: Matte Black, Turquoise & Orange

Pricing: (NEW)
Complete : $2999.00 CAD / $2549.00 USD + Shipping
Complete w/Dropper : $3299.00 CAD / $2799.00 USD + Shipping
Frame Only: $804.00 CAD / $704.00 USD + Shipping

Included with the Frame Only option:
Rear 12x148mm Sliding Drop-out Inserts
SRAM Rear Maxle Ultimate 12x148mm
Seat Post Clamp

 

Prices and Specs are subject to change without notice.

Note: We are unable to accommodate any single component substitution from one build to another, BUT we can accommodate the substitution of an entire build. Pricing will be dependent on the build and/or frame material at RSD’s sole discretion. All prices listed are Minimum Suggested Retail.

29in SLX Build

  • Frame: 27.5+/29 Cr-Mo 4130 Double Butted and Heat Treated
  • Fork: Rockshox Pike Select RC 27.5+/29 140mm 51mm
  • Headset: Cane Creek ZS-44
  • Handle Bar: Race Face 35mm Turbine R 780mm
  • Stem: Race Face 35mm Aeffect R 50mm
  • Grips: Lizard Skin Northshore
  • Front Wheel: Sun Ringle Duroc 29x35mm Front 15x110mm Boost
  • Rear Wheel: Sun Ringle Duroc 29x35mm Rear 12x148mm Boost
  • Crank: Race Face Turbine Cinch 175mm DM
  • Chain Ring: Race Face 30T Ring NW
  • BB: Race Face 73mm BSA
  • Chain: KMC 12spd
  • Cassette: Shimano SLX 10-51T 12spd
  • Rear Shifter: Shimano SLX Trigger 12spd
  • Rear Derailleur: Shimano SLX Long Cage 12spd
  • Brakes: Shimano SLX 4 Pistons M7120
  • Rotors: Shimano SLX 180mm
  • Saddle: WTB Volt Comp 142mm
  • Seat Post: 30.9mm Race Face Turbine / KS LEV Dropper (S & M 125mm, L 150mm, XL 175mm) with SouthPaw Lever
  • Rear Axle: SRAM 180mm Rear Maxle Ultimate 12x148mm
  • Tires: MAXXIS Minion DHF 29×2.5WT 3C/Max Terra/EXO Front and Aggressor 29×2.5WT 3C/Max Terra/EXO Rear

Frame Weight with Sliding Inserts and Hardware
(M): 6 Lbs 10 oz
(L): 6 Lbs 14 oz

Complete Bike Weight 
(M): 30 Lbs 1 oz with Dropper and set-up Tubeless
(M): 29 Lbs 7 oz with Turbine Seat Post and set-up Tubeless

Sizes: Sm, Med, Lrg, Xlrg

Finish: Matte Black, Turquoise & Orange

Pricing:
Complete : $2999.00 CAD / $2549.00 USD + Shipping
Complete w/Dropper : $3299.00 CAD / $2799.00 USD + Shipping
Frame Only: $804.00 CAD / $704.00 USD + Shipping

Included with the Frame Only option:
Rear 12x148mm Sliding Drop-out Inserts
SRAM Rear Maxle Ultimate 12x148mm
Seat Post Clamp

 

Prices and Specs are subject to change without notice.

Note: We are unable to accommodate any single component substitution from one build to another, BUT we can accommodate the substitution of an entire build. Pricing will be dependent on the build and/or frame material at RSD’s sole discretion. All prices listed are Minimum Suggested Retail.

Frame Specs & Geometry

  • Handmade Frame: 27.5+/29 Double Butted Chromoly 4130 Heat Treated
  • CNC Machined Custom Yoke: Chromoly 4130
  • CNC Machined Drop-Out: Chromoly 4130
  • CNC Machined Head Tube: 44mm
  • CNC Machined Bottom Bracket Shell: 73mm BSA
  • CNC Machined Sliding Inserts: 7000 Series Aluminum – 12mm Maxle and Post Disc Mount 160mm
  • Dropper Post Routing: Internal
  • Hardware: Stainless Steel
  • Fork Length: 551mm (140mm)
  • Rear Spacing: 148mm
  • Seat Post Clamp: 34.9mm
  • Seat Post: 30.9mm
  • Max Tire Size: 27.5×2.8in or 29×2.6in – Optimized for 2.8in tires, some 3.0 tire/rim combinations may have enough clearance. Rider discretion is advised
  • Max Fork Length: 561mm Axle to Crown (150mm Travel)
  • Max Dropper Post Insertion Length: Small 180mm, Medium 220mm, Large 240mm, XL 260mm
  • Torques Specs for 4 Drop-Out Bolts: 17N/m to 20N/m
Size Chart
Diagram
Geometry — Metric
Geometry — Imperial

Looking for something more versatile?

SERGEANT V4 AL

Learn More

Maybe something more aggressive?

RS-291 4130 STEEL

Learn More

How about a cheaper build option?

MIDDLECHILD V2 AL

Learn More

Ready for the ultimate hardtail?

MIDDLECHILD V2 Ti

Learn More

Is it possible to speak to a human?

  • Call us at 416-773-0030
  • Email us at info@rsdbikes.com
  • Chat with us: via the Drift Chat Line on the site

How much assembly is required?

As stated in the Shop page under each product, there is around 50% assembly required. Each bike takes approximately 30min to 1 hour for an experienced mechanic. Assembly should not be attempted if you’ve never done it before. A bike that is not properly assembled could result in potential serious injuries. Take it to a shop near you. https://rsdbikes.com/assembly-requirements/

Do Bikes, Frames or Forks really cost $100, $250 or $500?

No, the $100, $250 or $500 is a required deposit in order to secure a specific size, colour or build that is currently not in stock. The balance will be due prior to shipping. These amounts are labelled as Deposit or Pre-Order Deposit

When do I pay the balance after i placed a pre-order?

Once the pre-order is placed and the deposit paid, there are no further actions needed from you. We will contact you 2-3 weeks prior to the scheduled delivery to confirm your shipping information as well as the details of your order. Once all is confirmed, we will send you an invoice for the balance. We DO NOT automatically charge the original card used for the deposit. The balance can be settled with the same or any other cards.

After I placed a pre-order, can I pay down the balance before the bike/frame arrives?

Can your frames accept tapered forks?

What headset do i need?

What are the crank specs for the Mayor?

Do you have a size chart?

What’s the biggest Tire/Rim combo I can use on:

What’s the longest fork I can use on:

  • Mayor V3 – 120mm
  • Mayor V4 – 120mm
  • MiddleChild – 150mm
  • Wildcat – 150mm
  • Sergeant Ti – 150mm
  • Sergeant AL V2 – 150mm
  • Sergeant AL V3 – 150mm
  • Big Chief – 140mm
  • Catalyst – 100mm
  • Sheriff – 120mm

Does the Frame Only option also include the fork?

No, it doesn’t. the Frame Only option is for the frame only

Can I use a 142mm wheel inside a Boost 148mm Frames?

No, you can’t. You will void your warranty. No one makes sliders thick enough to accommodate the extra spacing. That being said, a lot of hub manufacturer offer a conversion kit. Check with them.

What other shock will fit the Wildcat V2?

  • Rockshox Monarch RT, RL & RT3 in 200×51
  • Fox Float DPS, DPX2 & X2 in 7.875×2
  • Cane Creek DBair CS & IL in 200×50
  • Manitou McLoad in 200×50
  • DVO Topaz T3Air in 200×51
  • X-Fusion o2 Pro R, RL, RLR & RCX in 200×51
  • SR Suntour Edge R, RC, RLR, RLR8, LOR & LOR8 in 200×51 and Raidon R & LO in 200×51

Can I customize my build?

Yes and No. We might have some parts in stock. Depends on availability. We only have access to other parts from the manufacturers we currently work with, It also all depends in their available stock. If it’s a brand we never worked with, then sorry, we can’t.

Do you offer custom geometry?

No, we don’t. We designed each of our bikes from the ground up to be produced in large quantities, so we cannot accommodate single designs.

What is your warranty?

The short answer is that we offer a Lifetime warranty for manufacturer’s defects on all of our frames to the original owners only. Make sure to register your frame here. See the full Warranty details here

Is my warranty void if I drill my own Internal Dropper hole?

Yes, it will be voided. Each of our frames are tested as sold. If the frame is altered in anyway, it could compromise the strength of the frame and therefore void the warranty. See the full Warranty details here

Can I convert my bike to an e-bike?

Conversion to e-bike, regardless of the system, will void your warranty.

Do you ship to Canada or the U.S.?

Yes, we are located in Toronto, ON. CANADA and that’s where everything ships from. See shipping conditions on the Shop page. If you are located outside Canada’s 10 Provinces or the U.S. Lower 48 States, email us for a quote: info@rsdbikes.com

Do you ship Worldwide?

Yes, we can BUT it can be very expensive to ship from Canada. That being said, we just recently negotiated better shipping rates to Western Europe. It will be a soft launch for now. If all goes well, we can negotiate better rates for everywhere else. Email us for a quote: info@rsdbikes.com

Do you have a Distributor in my country?

Only in Japan for now Yuris LLC. We welcome any other Distributor inquiries. Email us for a shipping quote: info@rsdbikes.com

If i pick up my bike locally, can it be assembled?

Absolutely. We can assemble your bike for $250.00 CAD. It generally takes 24 hours

Can i pick-up if i am local? And Is there a discount?

Yes, you can pick up your new bike or frame from our office. We will deduct the shipping cost, if it’s already included, from the total price.

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