SERGEANT V4 Aluminum
Due to the extensive lead times being offered by certain components manufacturers, the original specifications/build kits for this bike have been changed. So that we may be able to deliver complete bikes as scheduled, per our shipping updates, certain parts have been swapped out for those with shorter lead times. In each case, we have attempted to make substitutions that do not compromise the integrity of each build. Pricing has changed accordingly.
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Important: Notwithstanding any change of specifications, pricing on all bikes will have to be adjusted to reflect the increases in the cost of manufacturing and shipping. This is unfortunate, but no manufacturer - large or small - will be unaffected by the strain on the global supply chain. We are doing our absolute best to keep our costs and timelines as close to original estimates as possible.
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The price changes are effective immediately, and have been applied to all affected bikes, including those on pre-order.
Estimated Delivery – April 30th, 2021
Same as the V3 but better. Shorter Chainstays, Same Tire Clearance and Slacker HTA
More details coming soon.
Same Raw as The MiddleChild AL and same Navy as the RS-291
27.5+ Build
- Frame: 27.5+/29 Aluminum 6061
- Fork: DVO Diamond D3 27.5+/29 140mm 44mm
- Headset: Cane Creek ZS-44
- Handle Bar: Race Face Chester 35 780mm
- Stem: FSA Comet 35 50mm
- Grips: Lizard Skin Northshore
- Front Wheel: Sun Ringle Duroc 27.5x50mm Front 15x110mm Boost
- Rear Wheel: Sun Ringle Duroc 27.5x50mm Rear 12x157mm Super Boost
- Crank: Race Face 175mm Aeffect 156mm DM
- Chain Ring: Race Face 30T NW Ring
- BB: Race Face 83mm BSA
- Chain: Shimano Deore 12spd
- Cassette: Shimano Deore 10/51T 12spd
- Rear Shifter: Shimano Deore 12spd
- Rear Derailleur: Shimano Deore 12spd
- Brakes: SRAM Level T
- Rotors: SRAM Centreline 180mm
- Saddle: Cionlli 142mm
- Seat Post: 30.9mm Race Face Ride / KS Lev Dropper (125mm Sm, 150mm Med. 175mm Lg & 200mm XL & XXL) with SouthPaw Lever
- Rear Axle: SRAM 188mm Rear Maxle Ultimate 12x157mm
- Tires: Maxxis Minion DHF & DHR II 27.5×2.8 3C/EXO/TR
Frame Weight (M): 5 Lbs 8 oz
Frame Weight (L): 5 Lbs 12 oz
Complete Weight (M): 29 Lbs 14 oz (Tubeless with Dropper)
Sizes: Sm, Med, Lrg, XL & XXL
Finish: Gloss Navy & Raw with Clear Coat
Pricing: (NEW)
Complete: $2599.00 CAD / $2099.00 USD
Complete with Dropper: $2899.00 CAD / $2349.00 USD
Frame with RSD Alloy Fork Combo: $999.00 CAD / $859.00 USD + Shipping
Frame Only: $749.00 CAD / $639.00 USD + Shipping
Included with the Frame Only option:
Cane Creek ZS-44 Headset for tapered steerer tube. Note: Frame Only orders received after Feb 5th do not include the headset. $35 USD/$45 CAD rebate will be applied
Rear 12x157mm Sliding Drop-out Inserts
SRAM 188mm Rear Maxle Ultimate 12x157mm
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 Build
- Frame: 27.5+/29 Aluminum 6061
- Fork: DVO Diamond D3 27.5+/29 140mm 44mm
- Headset: Cane Creek ZS-44
- Handle Bar: Race Face Chester 35 780mm
- Stem: FSA Comet 35 50mm
- Grips: Lizard Skin Northshore
- Front Wheel: Sun Ringle Duroc 29x40mm Front 15x110mm Boost
- Rear Wheel: Sun Ringle Duroc 29x40mm Rear 12x157mm Super Boost
- Crank: Race Face 175mm Aeffect 156mm DM
- Chain Ring: Race Face 30T NW Ring
- BB: Race Face 83mm BSA
- Chain: Shimano Deore 12spd
- Cassette: Shimano Deore 10/51T 12spd
- Rear Shifter: Shimano Deore 12spd
- Rear Derailleur: Shimano Deore 12spd
- Brakes: SRAM Level T
- Rotors: SRAM Centreline 180mm
- Saddle: Cionlli 142mm
- Seat Post: 30.9mm Race Face Ride / KS Lev Dropper (125mm Sm, 150mm Med. 175mm Lg & 200mm XL & XXL) with SouthPaw Lever
- Rear Axle: SRAM 188mm Rear Maxle Ultimate 12x157mm
- Tires: Maxxis Minion DHF & DHR II 29 x 2.6 3C/EXO/TR
Frame Weight (M): 5 Lbs 8 oz
Frame Weight (L): 5 Lbs 12 oz
Complete Weight (M): 29 Lbs 14 oz (Tubeless with Dropper)
Sizes: Sm, Med, Lrg, XL & XXL
Finish: Gloss Navy & Raw with Clear Coat
Pricing: (NEW)
Complete: $2599.00 CAD / $2099.00 USD
Complete with Dropper: $2899.00 CAD / $2349.00 USD
Frame with RSD Alloy Fork Combo: $999.00 CAD / $859.00 USD + Shipping
Frame Only: $749.00 CAD / $639.00 USD + Shipping
Included with the Frame Only option:
Cane Creek ZS-44 Headset for tapered steerer tube. Note: Frame Only orders received after Feb 5th do not include the headset. $35 USD/$45 CAD rebate will be applied
Rear 12x157mm Sliding Drop-out Inserts
SRAM 188mm Rear Maxle Ultimate 12x157mm
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+ Adventure Build
- Frame: 27.5+/29 Aluminum 6061
- Fork: RSD Aluminum Rigid 510mm 51mm
- Headset: Cane Creek ZS-44
- Handle Bar: Race Face Chester 35 780mm
- Stem: FSA Comet 35 50mm
- Grips: Lizard Skin Northshore
- Front Wheel: Sun Ringle Duroc 27.5x50mm Front 15x110mm Boost
- Rear Wheel: Sun Ringle Duroc 27.5x50mm Rear 12x157mm Super Boost
- Crank: Race Face 175mm Aeffect 156mm DM
- Chain Ring: Race Face 30T NW Ring
- BB: Race Face 83mm BSA
- Chain: Shimano Deore 12spd
- Cassette: Shimano Deore 10/51T 12spd
- Rear Shifter: Shimano Deore 12spd
- Rear Derailleur: Shimano Deore 12spd
- Brakes: SRAM Level T
- Rotors: SRAM Centreline 180mm
- Saddle: Cionlli 142mm
- Seat Post: 30.9mm Race Face Ride
- Rear Axle: SRAM 188mm Rear Maxle Ultimate 12x157mm
- Tires: Terrene Cake Eater 27.5 x 4.0
Frame Weight (M): 5 Lbs 8 oz
Frame Weight (L): 5 Lbs 12 oz
Complete Weight (M): 29 Lbs 14 oz (Tubeless with Dropper)
Sizes: Sm, Med, Lrg, XL & XXL
Finish: Gloss Navy & Raw with Clear Coat
Pricing: (NEW)
Complete Adventure Rigid 4.0: $2249.00 CAD / $1799.00 USD
Frame with RSD Alloy Fork Combo: $999.00 CAD / $859.00 USD + Shipping
Frame Only: $749.00 CAD / $639.00 USD + Shipping
Included with the Frame Only option:
Cane Creek ZS-44 Headset for tapered steerer tube. Note: Frame Only orders received after Feb 5th do not include the headset. $35 USD/$45 CAD rebate will be applied
Rear 12x157mm Sliding Drop-out Inserts
SRAM 188mm Rear Maxle Ultimate 12x157mm
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 Aluminum 6061 Double Butted and Heat Treated
- CNC Machined Drop-Out: 7000 Series Aluminum
- CNC Machined Head Tube: 44mm
- CNC Machined Bottom Bracket Shell: 83mm BSA
- CNC Machined Sliding Inserts: 7000 Series Aluminum – 12mm Maxle and IS Disc Mount
- ISCG 05
- Hardware: Stainless Steel
- Fork Length: 551mm (140mm)
- Rear Spacing: 157mm
- Seat Post Clamp: 34.9mm
- Seat Post: 30.9mm
- Max Dropper Post Insertion Length: Straight Seat Tube – Unlimited for All Sizes
- Max Tire Size: 27.5x4in or 29x3in (Both on 50mm Rims)
- Max Fork Length: 560mm Axle to Crown (150mm Travel)
- Torques Specs for 4 Drop-Out Bolts: 17N/m to 20N/m

27.5+ V4 – STATIC | Small | Medium | Large | XL | XXL | |
HT Angle | A | 65.5° | 65.5° | 65.5° | 65.5° | 65.5° |
ST Angle | B | 74° | 74° | 74° | 74° | 74° |
Actual TT | C | 569 | 605 | 621 | 640 | 658 |
Effective TT | D | 585 | 625 | 645 | 665 | 685 |
Seat Tube | E | 390 | 410 | 440 | 470 | 490 |
Chainstay | F | 440-455 | 440-455 | 440-455 | 440-455 | 440-455 |
BB Height | G | 320 | 320 | 320 | 320 | 320 |
Standover Height | H | 687 | 705 | 710 | 714 | 725 |
BB Drop (mm) | I | -45 | -45 | -45 | -45 | -45 |
Stack | J | 615 | 625 | 634 | 652 | 670 |
Reach | K | 408 | 445 | 463 | 478 | 493 |
Head Tube (mm) | L | 90 | 100 | 110 | 130 | 150 |
Fork length (mm) | M | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) |
Fork Offset (mm) | N | 51 | 51 | 51 | 51 | 51 |
Tire Size (in) | O | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 |
Wheelbase | 1177 | 1219 | 1240 | 1264 | 1286 | |
Rider | 155-170 | 170-180 | 178-188 | 185-193 | 190-198 | |
Fork length (mm) | M | 551 (140 Travel) | ||||
Tire Size (in) | O | 29×2.6 | ||||
BB Height | G | 335 | ||||
Rigid RSD Alloy Fork (mm) | M | 510 | ||||
Tire Size (in) | O | 2.80 | ||||
HT Angle | A | 66.5° | ||||
BB Height | G | 310 | ||||
Rigid RSD Alloy Fork (mm) | M | 510 | ||||
Tire Size (in) | O | 4.00 | ||||
HT Angle | A | 66.5° | ||||
BB Height | G | 320 |
27.5+ V4 – STATIC | Small | Medium | Large | XL | XXL | |
HT Angle | A | 65.5° | 65.5° | 65.5° | 65.5° | 65.5° |
ST Angle | B | 74° | 74° | 74° | 74° | 74° |
Actual TT | C | 22.4 | 23.82 | 24.45 | 25.20 | 25.91 |
Effective TT | D | 23.03 | 24.61 | 25.39 | 26,18 | 26.97 |
Seat Tube | E | 15.35 | 16.14 | 17.32 | 18.50 | 19.29 |
Chainstay | F | 17.32-17.91 | 17.32-17.91 | 17.32-17.91 | 17.32-17.91 | 17.32-17.91 |
BB Height | G | 12.60 | 12.60 | 12.60 | 12.60 | 12.60 |
Standover Height | H | 27.05 | 27.76 | 27.95 | 28.11 | 28.54 |
BB Drop (mm) | I | -45 | -45 | -45 | -45 | -45 |
Stack | J | 24.21 | 24.61 | 24.96 | 25.67 | 26.38 |
Reach | K | 16.06 | 17.52 | 18.23 | 18.82 | 19.41 |
Head Tube (mm) | L | 90 | 100 | 110 | 130 | 150 |
Fork length (mm) | M | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) |
Fork Offset (mm) | N | 51 | 51 | 51 | 51 | 51 |
Tire Size (in) | O | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 |
Wheelbase | 46.34 | 47.99 | 48.82 | 49.76 | 50.63 | |
Rider | 5’2-5’7 | 5’7-5’11 | 5’10-6’2 | 6’1-6’4 | 6’3-6’6 | |
Fork length (mm) | M | 551 (140 Travel) | ||||
Tire Size (in) | O | 29×2.6 | ||||
BB Height | G | 13.19 | ||||
Rigid RSD Alloy Fork (mm) | M | 510 | ||||
Tire Size (in) | O | 2.80 | ||||
HT Angle | A | 66.5° | ||||
BB Height | G | 12.20 | ||||
Rigid RSD Alloy Fork (mm) | M | 510 | ||||
Tire Size (in) | O | 4.00 | ||||
HT Angle | A | 66.5° | ||||
BB Height | G | 12.60 |
Coming Soon
Coming Soon