Transition Repeater PT
The Transition Repeater PT is a 170 mm carbon eMTB with SRAM Eagle Powertrain, 90 Nm and a 720 Wh battery, built for technical climbs, repeated laps and long descents.
- 170 mm front and rear: Enough travel to stay composed when the descent gets steep and rough.
- 90 Nm Powertrain: Confident assistance when a technical climb gets loose and steep.
- 720 Wh battery: Standard capacity for extra laps before you need a socket.
- Auto Shift and Coast Shift: Gears can change for you, including while you are freewheeling.
- Mixed-wheel carbon frame: A calm 29-inch front with a rear wheel that turns more easily.
- Tyres and Maven brakes: 2.5-inch casings and 200 mm rotors matched to the speed this travel invites.
Transition Repeater PT Deals
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Bikesy's Verdict
The Transition Repeater PT suits riders who want full-power help on steep climbs and 170 mm of composure on the way down. SRAM Eagle Powertrain gives you 90 Nm, a 720 Wh battery, and shifting that can work automatically, while coasting, or from the Pod. The AXS build pairs that platform with mixed wheels, Maven Base brakes and a carbon frame that can take a 29-inch rear wheel once the geometry chip is set. It is a planted bike for repeated trail laps, not a light commute. The battery stays in the frame and there is no range extender, so it belongs somewhere you can charge it. For weekends of steep laps and long descents, that mix of assistance and travel is why the AXS build earns a close look.
Pros
- Full-power climbing assistance, with 720 Wh in the frame from the start.
- 170 mm at both ends, and a frame that can take a compatible coil shock later.
- Gears can be left to Auto Shift, set while coasting, or picked from the Pod.
- Agile mixed wheels as standard, plus a supported move to dual 29-inch wheels.
- A lifetime frame warranty for the original owner on a chassis meant for hard riding.
Cons
- Charging means the whole bike, because the battery isn't meant to come out for routine use, and you can't ride without it.
- Very long or remote rides have no extender to fall back on, so the 720 Wh pack is the limit.
- Auto Shift may not grab a low gear in time when a descent turns straight into a steep climb.
The Transition Repeater PT is the long-travel eMTB you want when a normal loop should really be another lap. You get a full-power carbon bike with 170 mm at both ends, enough assistance to have a go at a steep technical climb, and enough travel to enjoy the descent afterwards.
Committed intermediate and expert riders get the bike they actually need here, and a progressing rider can grow into it when the plan is rough descents and climbs that need traction. A towpath potter, or a simple bike you can pedal with the battery removed, is a different job.
This is the current UK model.
What the AXS build puts on the trail
Official original UK RRP for the Repeater PT AXS is £6,399. That build puts a RockShox ZEB Base fork and SuperDeluxe Base shock on the carbon frame, both at 170 mm, with SRAM Maven Base brakes and 200 mm rotors. Gearing is SRAM S1000 AXS T-Type: a 10-52 cassette, a 34-tooth chainring and 150 mm cranks, controlled from an AXS Pod.
Wheels are mixed WTB rims, 29-inch at the front and 27.5-inch at the rear, wrapped in a Maxxis Assegai 2.5-inch up front and a Minion DHR II 2.5-inch at the back in tough casings. The dropper is a cable-operated SDG Tellis, with travel and bar rise matched to each frame size rather than one post for every rider.
Earlier Repeater PT GX AXS and Repeater PT XO AXS bikes still appear among UK offers. They share this platform and they aren't this build. Both of those packages used dual 29-inch wheels, different suspension and brakes, and a wireless Reverb AXS post. An XO AXS offer brings the higher-spec parts, and it also brings a dual 29-inch setup, so the mixed-wheel geometry on this page doesn't describe that bike. A year on a listing doesn't turn the older package into the current specification. Fork, shock, brakes, wheel format, dropper and drivetrain are the details that separate them.
How the chassis should feel
GiddyUp is Transition's linkage, and on the Repeater PT it delivers 170 mm through a 205 mm x 65 mm trunnion shock. Progression is approximately 26.6%, with suggested sag of 18-22 mm, or 28-34%. The complete bike comes with a SuperDeluxe Base air shock. A compatible coil can use the same mount and the correct hardware, but it isn't a blind bolt-on. There's no model-specific spring chart.
This mixed-wheel eMTB leaves the factory with the chip in the mixed position. The 27.5-inch rear wheel is the more agile choice, and it should help the bike change direction more readily than the earlier dual 29-inch builds. A Boost 29-inch rear wheel is the supported route when rollover matters more than agility. Move the lower shock-mount chip to the dual 29-inch position at the same time, and budget for a 29-inch tyre plus a cassette or rotor when the new wheel doesn't already carry them. Published geometry belongs to the mixed setup and won't still apply after that change.
Reach runs from 421 mm on the Small to 506 mm on the X-Large, with chainstays held at 453 mm. Head angle is 63.1 degrees on Small, Medium and Large, and 63.2 degrees on the X-Large, which sets the front end up for steep tracks rather than quick steering in town. Seat angle starts at 78.8 degrees and eases to 77.1 degrees on the X-Large, still steep enough to keep you over the pedals on a climb. Bigger sizes should feel long and planted. The headset interface is an oversized ZS56/ZS66. A normal bearing replacement won't change the angles, while a compatible reach- or angle-adjust headset can fine-tune fit or steering as an extra purchase.
Max Rhulen's two-day first ride for The Loam Wolf, on an earlier XO AXS in Large, called descending the strongest quality: composed and supple, with some playfulness still in the suspension. Treat that as a read on this platform. Those days were not spent on the current Base fork and shock.
Power for the climbs, and the battery you live with
SRAM Eagle Powertrain ties the motor to the gears on this SRAM Powertrain eMTB. Output is 90 Nm, the battery holds 720 Wh, and Range and Rally are the assistance settings. The drive unit powers a compatible AXS derailleur, which is why Auto Shift and Coast Shift exist. Another wireless drivetrain can physically fit, but those Powertrain functions disappear and the swap isn't recommended. Replacement gears should stay in the compatible SRAM Eagle Transmission family.
AXS Auto Shift can be switched off from the Pod controller or the SRAM AXS app, and Coast Shift stays available either way. Coast Shift selects a gear while the bike is moving, without you turning the cranks, so a lower ratio can be waiting when you start pedalling again. Before an abrupt climb, that manual option is worth using. Automatic selection can still be a step behind when a descent snaps straight into a steep pitch.
No compatible range extender fits this frame. The bike already uses SRAM's full-size 720 Wh battery, and the 250 Wh extender doesn't fit. Range mode, a more conservative assistance tune and a realistic route are how you manage a longer day. For several steep laps, or a long trail-centre outing, that pack is a strong standard battery. Riders whose usual routes outlast a full charge will notice the limit.
Charging is an on-the-bike job. The battery is semi-permanently installed, isn't meant to be pulled for every charge, and the Repeater PT can't be ridden without it. Secure storage with a socket beside the bike makes ownership simple. Several flights of stairs between the bike and the only power point make it a chore. Allow a generous five-to-six-hour charge, or leave it overnight.
After the filthy rides
Wet, gritty British miles load the chain, the pivots and the fork seals harder when a motor is adding torque. A proper clean after those rides, a look at the pivot hardware, and suspension service on schedule are the upkeep this travel and power ask for. Rear tyre clearance deserves the same honesty. Treat 2.5 inches as the conservative guideline and leave space for mud. The stock Minion DHR II is already a 2.5-inch DoubleDown, so a taller replacement isn't an automatic win.
Firmware updates normally run through the AXS app. Diagnostics or an electronic fault beyond that can need an authorised Powertrain dealer. Boxed bikes arrive 95% assembled, which still leaves bolts, brakes and suspension to be finished and checked. Dealer handover is the sensible route when that last work isn't a job you want.
Original owners receive a lifetime frame warranty against manufacturing defects. The Powertrain system has a separate two-year component warranty, and the fork, shock and drivetrain follow their own service schedules. The carbon chassis is the piece built to stay. The motor and battery are the pieces you plan around.
Earlier Repeater bikes, and how not to mix them up
The first-generation Transition Repeater is a previous generation, and it isn't this bike with a different sticker. It uses a Shimano EP8-specific frame and a 160 mm platform, and it can't be converted to SRAM Powertrain.
Repeater PT GX AXS and Repeater PT XO AXS offers are previous component packages on this same platform. They aren't a separate generation. Both were supplied with dual 29-inch wheels. The GX AXS paired ZEB Select and Vivid Select+ suspension with Code Bronze brakes, GX AXS Transmission, DT Swiss wheels, 160 mm cranks and a Reverb AXS dropper. The XO AXS was the premium dual 29-inch package: ZEB Ultimate and Vivid Ultimate suspension, Code Silver Stealth brakes with 220 mm rotors, XO AXS Transmission, Crankbrothers Synthesis wheels on Industry Nine hubs, a carbon handlebar and a Reverb AXS post. Official original UK RRP on that XO AXS build was £11,999.
Wireless posts and 160 mm cranks are the quick contrast with the current cable-operated Tellis and 150 mm S1000 cranks. A Medium XO AXS was listed at 23.95 kg. Transition has not published a complete-bike weight for the current AXS build, so that Medium figure should stay with the earlier bike.
Choose the Repeater PT AXS when you want those steep laps without booking an uplift. The motor covers the climbs, 170 mm covers the descents, and the battery is sized for staying out rather than one token loop.
Key Features & Benefits
- Integrated Eagle Powertrain: The drive unit makes 90 Nm and powers the AXS derailleur, so Auto Shift and Coast Shift are built in rather than bolted on. Range and Rally are the two assistance settings, and the Pod still lets you pick the gear.
- 170 mm GiddyUp suspension: Matching travel at each end is for rough descents and loose climbs, with a progressive linkage and room for a coil shock later if the spring is chosen properly.
- Mixed or dual 29-inch wheels: Stock is a 29-inch front and 27.5-inch rear. A Boost 29-inch rear wheel, a matching tyre and a chip change are the path to more rollover, and the geometry figures change with that chip.
- Size-matched Tellis dropper: Cable-operated travel is 150 mm on Small, 170 mm on Medium, 200 mm on Large and 230 mm on X-Large. Smaller frames get a shorter post, not one sized for a much taller rider.
- Original-owner frame warranty: Manufacturing defects in the carbon frame are covered for the original owner's lifetime. Motor and battery sit on a separate two-year Powertrain warranty.
Geometry
Mixed-wheel geometry
These figures are the current mixed-wheel geometry, with a 29-inch front and 27.5-inch rear. A 29-inch rear conversion uses the lower shock-mount chip and changes the geometry. Do not apply this chart to an earlier dual 29-inch complete bike.
| Size | Reach (mm) | Stack (mm) | Effective top tube (mm) | Head angle (degrees) | Seat angle (degrees) | Chainstay (mm) | Wheelbase (mm) | Standover (mm) | Seat tube (mm) | Head tube (mm) | Estimated BB height (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Small | 421 | 633 | 551 | 63.1 | 78.8 | 453 | 1228 | 710 | 380 | 110 | 345 |
| Medium | 451 | 637 | 584 | 63.1 | 78.1 | 453 | 1261 | 720 | 400 | 115 | 345 |
| Large | 476 | 646 | 615 | 63.1 | 77.8 | 453 | 1290 | 730 | 440 | 125 | 345 |
| X-Large | 506 | 656 | 654 | 63.2 | 77.1 | 453 | 1325 | 740 | 470 | 135 | 345 |
Regulator CX and Relay PNW Alloy
The Transition Regulator CX is the more versatile all-mountain option in the same range. It runs 160 mm up front and 150 mm at the rear, with a 120 Nm Bosch motor, a 600 Wh battery and support for a 250 Wh extender. The Repeater PT answers with 170 mm at both ends, a 90 Nm Powertrain motor, integrated Auto Shift and Coast Shift, and a larger 720 Wh battery, without a compatible extender. The Regulator CX is the one when expandable range and that shorter-travel all-mountain setup matter more. The Repeater PT is the one when travel, standard battery capacity and motor-integrated shifting are the point.
The Transition Relay PNW Alloy matches the mixed wheels and the 170 mm travel, then diverges on the system. Its Fazua motor is a lighter-duty 60 Nm, the 430 Wh battery comes out for charging, and the Relay can be ridden with that battery removed. Choose the Relay for that modularity and a lighter-bike character. Choose the Repeater PT for stronger assistance and more capacity in the standard pack.
A first ride on the XO AXS
Max Rhulen rode an earlier Repeater PT XO AXS, size Large, for The Loam Wolf. It was a two-day first ride on the Powertrain platform, so it speaks to ride feel rather than long-term wear. It was not a ride of the current AXS build's Base suspension, Maven brakes or WTB wheels. The Loam Wolf's filmed first ride covers that same XO AXS Large.
Assistance came across as smooth and controllable. He found traction on technical climbs and described the climbing position as comfortable. Auto Shift convinced him on flowing trails. Before an abrupt climb he still wanted to anticipate the gear himself, rather than wait for the system.
Descending was the part he rated most highly. He called it composed, and more supple and comfortable than its predecessor, while the suspension retained some playfulness.
Full Specification
Figures here are for the current Repeater PT AXS and the shared PT platform. Earlier GX AXS, XO AXS and first-generation EP8 bikes are not in these tables.
Shared platform
| Specification | Detail |
|---|---|
| Intended use | Full-power technical trail and enduro-style eMTB riding, with an emphasis on difficult climbs and composed descending |
| Frame | Full-carbon with GiddyUp suspension |
| Frame details | SRAM UDH, integrated top chain guide, underside top-tube gear accessory mount, oversized ZS56/ZS66 headset interface |
| Travel | 170 mm front and rear |
| Rear shock mount | 205 mm x 65 mm trunnion, 30 mm x 8 mm lower hardware |
| Progression | Approximately 26.6% |
| Recommended sag | 18-22 mm or 28-34% |
| Shock options | Air and coil supported |
| Rear axle | 12 x 148 mm |
| Chainline | 55 mm |
| Derailleur power | Powertrain drives and powers a compatible AXS derailleur |
| 29-inch rear wheel | Supported when the lower shock-mount geometry chip is repositioned |
| Tyre guideline | 2.5 inches, leaving additional mud clearance |
| Sizes | Small, Medium, Large, X-Large |
Current Repeater PT AXS
| Specification | Detail |
|---|---|
| Official original UK RRP | £6,399 |
| Frame | Repeater PT full-carbon, 170 mm GiddyUp suspension |
| Fork | RockShox ZEB Base, 170 mm |
| Shock | RockShox SuperDeluxe Base, 205 mm x 65 mm |
| Motor | SRAM Eagle Powertrain, 90 Nm |
| Battery | SRAM full-size 720 Wh, semi-permanently installed, not intended for routine removal |
| Assistance and shifting | Range, Rally and Push Mode; Auto Shift and Coast Shift |
| Range extender | Not compatible |
| Shifter | SRAM AXS Pod Controller |
| Rear derailleur | SRAM S1000 AXS T-Type |
| Crankset | SRAM S1000, 150 mm, 34-tooth chainring |
| Bottom bracket | SRAM Eagle Powertrain drive-unit interface |
| Cassette | SRAM XS-1270 T-Type, 10-52-tooth |
| Chain | SRAM Eagle 70 Transmission |
| Brakes | SRAM Maven Base levers and calipers |
| Rotors | SRAM Centerline, 200 mm front and rear |
| Wheel format | 29-inch front and 27.5-inch rear, mixed-wheel geometry-chip position |
| Rims | WTB ST Tough i30 |
| Front hub | Novatec D791SB |
| Rear hub | Novatec D902SB |
| Spokes | Pillar straight gauge |
| Front tyre | Maxxis Assegai 2.5-inch 3C MaxxGrip EXO+ |
| Rear tyre | Maxxis Minion DHR II 2.5-inch 3C MaxxTerra DoubleDown |
| Handlebar | RaceFace Chester 35, 780 mm, rise by size |
| Stem | RaceFace Aeffect R, 40 mm |
| Grips | ODI Longneck V2.1 Lock-On |
| Headset | FSA NO.55R/44 |
| Seatpost | SDG Tellis, cable-operated, travel by size |
| Saddle | SDG Bel Air 3 |
Size-specific kit on the current AXS build
| Size | Dropper travel (mm) | Handlebar rise (mm) | Maximum seatpost insertion (mm) |
|---|---|---|---|
| Small | 150 | 20 | 220 |
| Medium | 170 | 35 | 240 |
| Large | 200 | 35 | 280 |
| X-Large | 230 | 35 | 310 |